./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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 ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad220425e59782d2842875bc5488a6e9ea4ef5ae ............................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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 ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad220425e59782d2842875bc5488a6e9ea4ef5ae ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:15:26,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:15:26,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:15:26,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:15:26,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:15:26,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:15:26,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:15:26,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:15:26,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:15:26,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:15:26,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:15:26,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:15:26,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:15:26,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:15:26,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:15:26,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:15:26,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:15:26,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:15:26,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:15:26,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:15:26,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:15:26,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:15:26,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:15:26,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:15:26,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:15:26,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:15:26,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:15:26,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:15:26,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:15:26,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:15:26,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:15:26,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:15:26,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:15:26,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:15:26,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:15:26,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:15:26,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:15:26,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:15:26,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:15:26,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:15:26,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:15:26,503 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:15:26,546 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:15:26,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:15:26,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:15:26,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:15:26,548 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:15:26,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:15:26,549 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:15:26,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:15:26,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:15:26,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:15:26,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:15:26,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:15:26,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:15:26,551 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:15:26,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:15:26,551 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:15:26,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:15:26,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:15:26,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:15:26,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:15:26,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:15:26,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:15:26,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:15:26,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:15:26,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:15:26,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:15:26,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:15:26,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:15:26,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:15:26,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(reach_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 -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2020-10-20 00:15:26,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:15:26,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:15:26,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:15:26,801 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:15:26,802 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:15:26,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-10-20 00:15:26,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b76302aa/a6e9268aae284d88a5212e6c806e8cab/FLAGea64bbf7c [2020-10-20 00:15:27,343 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:15:27,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-10-20 00:15:27,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b76302aa/a6e9268aae284d88a5212e6c806e8cab/FLAGea64bbf7c [2020-10-20 00:15:27,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b76302aa/a6e9268aae284d88a5212e6c806e8cab [2020-10-20 00:15:27,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:15:27,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:15:27,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:27,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:15:27,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:15:27,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:27" (1/1) ... [2020-10-20 00:15:27,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640be503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:27, skipping insertion in model container [2020-10-20 00:15:27,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:27" (1/1) ... [2020-10-20 00:15:27,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:15:27,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:15:28,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:28,046 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:15:28,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:28,082 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:15:28,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28 WrapperNode [2020-10-20 00:15:28,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:28,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:28,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:15:28,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:15:28,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28" (1/1) ... [2020-10-20 00:15:28,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28" (1/1) ... [2020-10-20 00:15:28,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:28,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:15:28,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:15:28,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:15:28,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28" (1/1) ... [2020-10-20 00:15:28,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28" (1/1) ... [2020-10-20 00:15:28,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28" (1/1) ... [2020-10-20 00:15:28,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28" (1/1) ... [2020-10-20 00:15:28,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28" (1/1) ... [2020-10-20 00:15:28,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28" (1/1) ... [2020-10-20 00:15:28,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28" (1/1) ... [2020-10-20 00:15:28,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:15:28,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:15:28,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:15:28,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:15:28,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28" (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 [2020-10-20 00:15:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:15:28,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:15:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:15:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:15:28,433 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:15:28,434 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 00:15:28,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:28 BoogieIcfgContainer [2020-10-20 00:15:28,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:15:28,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:15:28,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:15:28,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:15:28,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:15:27" (1/3) ... [2020-10-20 00:15:28,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41cc1029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:28, skipping insertion in model container [2020-10-20 00:15:28,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:28" (2/3) ... [2020-10-20 00:15:28,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41cc1029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:28, skipping insertion in model container [2020-10-20 00:15:28,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:28" (3/3) ... [2020-10-20 00:15:28,473 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2020-10-20 00:15:28,501 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:15:28,511 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:15:28,547 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:15:28,569 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:15:28,569 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:15:28,569 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:15:28,570 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:15:28,570 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:15:28,570 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:15:28,570 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:15:28,570 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:15:28,589 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-20 00:15:28,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:15:28,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:15:28,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:15:28,596 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:15:28,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:15:28,603 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-20 00:15:28,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:15:28,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461402397] [2020-10-20 00:15:28,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:15:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:15:28,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:15:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:15:28,737 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:15:28,761 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:15:28,761 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:15:28,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:15:28,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:15:28 BoogieIcfgContainer [2020-10-20 00:15:28,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:15:28,783 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:15:28,783 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:15:28,783 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:15:28,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:28" (3/4) ... [2020-10-20 00:15:28,788 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:15:28,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:15:28,792 INFO L168 Benchmark]: Toolchain (without parser) took 1053.24 ms. Allocated memory was 35.7 MB in the beginning and 47.2 MB in the end (delta: 11.5 MB). Free memory was 10.1 MB in the beginning and 13.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:28,793 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 35.7 MB. Free memory was 14.8 MB in the beginning and 14.8 MB in the end (delta: 49.1 kB). Peak memory consumption was 49.1 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:28,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.19 ms. Allocated memory was 35.7 MB in the beginning and 45.1 MB in the end (delta: 9.4 MB). Free memory was 9.2 MB in the beginning and 28.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:28,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.82 ms. Allocated memory is still 45.1 MB. Free memory was 28.0 MB in the beginning and 26.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:28,797 INFO L168 Benchmark]: Boogie Preprocessor took 21.13 ms. Allocated memory is still 45.1 MB. Free memory was 26.2 MB in the beginning and 25.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:28,798 INFO L168 Benchmark]: RCFGBuilder took 296.93 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 25.0 MB in the beginning and 28.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:28,799 INFO L168 Benchmark]: TraceAbstraction took 328.62 ms. Allocated memory is still 47.2 MB. Free memory was 27.5 MB in the beginning and 13.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:28,801 INFO L168 Benchmark]: Witness Printer took 5.89 ms. Allocated memory is still 47.2 MB. Free memory was 13.9 MB in the beginning and 13.4 MB in the end (delta: 492.2 kB). Peak memory consumption was 492.2 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:28,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 35.7 MB. Free memory was 14.8 MB in the beginning and 14.8 MB in the end (delta: 49.1 kB). Peak memory consumption was 49.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 340.19 ms. Allocated memory was 35.7 MB in the beginning and 45.1 MB in the end (delta: 9.4 MB). Free memory was 9.2 MB in the beginning and 28.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 34.82 ms. Allocated memory is still 45.1 MB. Free memory was 28.0 MB in the beginning and 26.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 21.13 ms. Allocated memory is still 45.1 MB. Free memory was 26.2 MB in the beginning and 25.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 296.93 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 25.0 MB in the beginning and 28.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 328.62 ms. Allocated memory is still 47.2 MB. Free memory was 27.5 MB in the beginning and 13.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. * Witness Printer took 5.89 ms. Allocated memory is still 47.2 MB. Free memory was 13.9 MB in the beginning and 13.4 MB in the end (delta: 492.2 kB). Peak memory consumption was 492.2 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 10, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L6] float f = 0x1.9e0c22p-101f; [L7] float g = -0x1.3c9014p-50f; [L8] float target = -0x1p-149f; [L10] float result = f * g; [L12] COND TRUE !(result == target) [L3] __assert_fail("0", "float-no-simp7.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: 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 0.1.25-9a8b2e8 [2020-10-20 00:15:31,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:15:31,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:15:31,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:15:31,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:15:31,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:15:31,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:15:31,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:15:31,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:15:31,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:15:31,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:15:31,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:15:31,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:15:31,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:15:31,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:15:31,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:15:31,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:15:31,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:15:31,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:15:31,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:15:31,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:15:31,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:15:31,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:15:31,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:15:31,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:15:31,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:15:31,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:15:31,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:15:31,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:15:31,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:15:31,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:15:31,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:15:31,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:15:31,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:15:31,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:15:31,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:15:31,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:15:31,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:15:31,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:15:31,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:15:31,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:15:31,102 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:15:31,151 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:15:31,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:15:31,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:15:31,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:15:31,155 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:15:31,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:15:31,156 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:15:31,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:15:31,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:15:31,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:15:31,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:15:31,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:15:31,158 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:15:31,158 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:15:31,159 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:15:31,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:15:31,159 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:15:31,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:15:31,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:15:31,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:15:31,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:15:31,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:15:31,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:15:31,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:15:31,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:15:31,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:15:31,163 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:15:31,163 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:15:31,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:15:31,164 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:15:31,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:15:31,164 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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(reach_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 -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2020-10-20 00:15:31,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:15:31,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:15:31,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:15:31,389 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:15:31,390 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:15:31,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-10-20 00:15:31,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27c806a53/4605c9d5f4fe4466b1e28aa3dbe03d42/FLAG8a8d4d53b [2020-10-20 00:15:32,066 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:15:32,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-10-20 00:15:32,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27c806a53/4605c9d5f4fe4466b1e28aa3dbe03d42/FLAG8a8d4d53b [2020-10-20 00:15:32,485 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27c806a53/4605c9d5f4fe4466b1e28aa3dbe03d42 [2020-10-20 00:15:32,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:15:32,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:15:32,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:32,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:15:32,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:15:32,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:32" (1/1) ... [2020-10-20 00:15:32,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e04682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32, skipping insertion in model container [2020-10-20 00:15:32,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:32" (1/1) ... [2020-10-20 00:15:32,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:15:32,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:15:32,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:32,773 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:15:32,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:32,815 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:15:32,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32 WrapperNode [2020-10-20 00:15:32,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:32,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:32,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:15:32,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:15:32,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32" (1/1) ... [2020-10-20 00:15:32,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32" (1/1) ... [2020-10-20 00:15:32,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:32,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:15:32,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:15:32,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:15:32,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32" (1/1) ... [2020-10-20 00:15:32,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32" (1/1) ... [2020-10-20 00:15:32,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32" (1/1) ... [2020-10-20 00:15:32,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32" (1/1) ... [2020-10-20 00:15:32,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32" (1/1) ... [2020-10-20 00:15:32,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32" (1/1) ... [2020-10-20 00:15:32,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32" (1/1) ... [2020-10-20 00:15:32,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:15:32,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:15:32,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:15:32,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:15:32,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32" (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 [2020-10-20 00:15:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:15:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:15:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:15:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:15:33,336 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:15:33,336 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 00:15:33,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:33 BoogieIcfgContainer [2020-10-20 00:15:33,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:15:33,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:15:33,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:15:33,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:15:33,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:15:32" (1/3) ... [2020-10-20 00:15:33,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619dc315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:33, skipping insertion in model container [2020-10-20 00:15:33,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:32" (2/3) ... [2020-10-20 00:15:33,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619dc315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:33, skipping insertion in model container [2020-10-20 00:15:33,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:33" (3/3) ... [2020-10-20 00:15:33,348 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2020-10-20 00:15:33,361 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:15:33,369 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:15:33,390 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:15:33,422 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:15:33,422 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:15:33,423 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:15:33,423 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:15:33,423 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:15:33,424 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:15:33,424 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:15:33,424 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:15:33,442 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-20 00:15:33,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:15:33,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:15:33,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:15:33,452 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:15:33,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:15:33,460 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-20 00:15:33,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:15:33,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698005866] [2020-10-20 00:15:33,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-20 00:15:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:15:33,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 00:15:33,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:15:33,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:15:33,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:15:33,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:15:33,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1698005866] [2020-10-20 00:15:33,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:15:33,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 00:15:33,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736813396] [2020-10-20 00:15:33,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:15:33,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:15:33,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:15:33,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:15:33,791 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-10-20 00:15:33,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:15:33,926 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-20 00:15:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:15:33,929 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-10-20 00:15:33,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:15:33,935 INFO L225 Difference]: With dead ends: 14 [2020-10-20 00:15:33,935 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:15:33,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:15:33,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:15:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:15:33,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:15:33,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:15:33,966 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-20 00:15:33,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:15:33,967 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:15:33,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:15:33,967 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:15:33,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:15:34,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:15:34,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:15:34,246 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:15:34,246 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:15:34,247 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:15:34,247 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:15:34,247 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:15:34,248 INFO L270 CegarLoopResult]: At program point L14(lines 5 15) the Hoare annotation is: (and (= (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 13567505.0 21267647932558653966460912964485513216.0)) (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 5186565.0 4722366482869645213696.0)))) ULTIMATE.start_main_~result~0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_main_~target~0 (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 713623846352979940529142984724747568191373312.0))))) [2020-10-20 00:15:34,248 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-20 00:15:34,248 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-20 00:15:34,248 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:15:34,248 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:15:34,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,264 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,264 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,264 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,266 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:15:34,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,284 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,284 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,285 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:15:34,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:15:34 BoogieIcfgContainer [2020-10-20 00:15:34,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:15:34,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:15:34,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:15:34,291 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:15:34,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:33" (3/4) ... [2020-10-20 00:15:34,297 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:15:34,321 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-20 00:15:34,322 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 00:15:34,323 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 00:15:34,323 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:15:34,362 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:15:34,362 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:15:34,365 INFO L168 Benchmark]: Toolchain (without parser) took 1873.63 ms. Allocated memory was 41.9 MB in the beginning and 46.1 MB in the end (delta: 4.2 MB). Free memory was 21.1 MB in the beginning and 25.0 MB in the end (delta: -3.9 MB). Peak memory consumption was 318.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:34,366 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 32.0 MB. Free memory was 9.6 MB in the beginning and 9.5 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:34,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.76 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 20.3 MB in the beginning and 21.1 MB in the end (delta: -738.7 kB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:34,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.08 ms. Allocated memory is still 42.5 MB. Free memory was 20.9 MB in the beginning and 19.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:34,369 INFO L168 Benchmark]: Boogie Preprocessor took 30.05 ms. Allocated memory is still 42.5 MB. Free memory was 19.3 MB in the beginning and 18.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:34,370 INFO L168 Benchmark]: RCFGBuilder took 447.16 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 18.0 MB in the beginning and 23.0 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:34,371 INFO L168 Benchmark]: TraceAbstraction took 950.18 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 22.4 MB in the beginning and 27.9 MB in the end (delta: -5.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:34,372 INFO L168 Benchmark]: Witness Printer took 72.21 ms. Allocated memory is still 46.1 MB. Free memory was 27.9 MB in the beginning and 25.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:34,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 32.0 MB. Free memory was 9.6 MB in the beginning and 9.5 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 318.76 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 20.3 MB in the beginning and 21.1 MB in the end (delta: -738.7 kB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 44.08 ms. Allocated memory is still 42.5 MB. Free memory was 20.9 MB in the beginning and 19.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 30.05 ms. Allocated memory is still 42.5 MB. Free memory was 19.3 MB in the beginning and 18.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 447.16 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 18.0 MB in the beginning and 23.0 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 950.18 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 22.4 MB in the beginning and 27.9 MB in the end (delta: -5.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. * Witness Printer took 72.21 ms. Allocated memory is still 46.1 MB. Free memory was 27.9 MB in the beginning and 25.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 5]: Loop Invariant [2020-10-20 00:15:34,392 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,392 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:15:34,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,395 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,395 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,395 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,395 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:15:34,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.mul~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 13567505/21267647932558653966460912964485513216), ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5186565/4722366482869645213696))) == result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && target == ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/713623846352979940529142984724747568191373312)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 21 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 5 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...