./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-cbmc-regression/float-zero-sum1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f 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_1.5.800.v20200727-1323.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/floats-cbmc-regression/float-zero-sum1.i -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 debea56186ef4ab268c0be4274b8e0822edc1b01 ........................................................................................................................................................................................................................................ 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_1.5.800.v20200727-1323.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/floats-cbmc-regression/float-zero-sum1.i -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 debea56186ef4ab268c0be4274b8e0822edc1b01 ........................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 14:10:25,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:10:25,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:10:25,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:10:25,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:10:25,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:10:25,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:10:25,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:10:25,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:10:25,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:10:25,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:10:25,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:10:25,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:10:25,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:10:25,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:10:25,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:10:25,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:10:25,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:10:25,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:10:25,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:10:25,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:10:25,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:10:25,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:10:25,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:10:25,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:10:25,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:10:25,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:10:25,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:10:25,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:10:25,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:10:25,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:10:25,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:10:25,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:10:25,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:10:25,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:10:25,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:10:25,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:10:25,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:10:25,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:10:25,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:10:25,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:10:25,505 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 14:10:25,575 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:10:25,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:10:25,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:10:25,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:10:25,581 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:10:25,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:10:25,582 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:10:25,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 14:10:25,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:10:25,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:10:25,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:10:25,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:10:25,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:10:25,585 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:10:25,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:10:25,586 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:10:25,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:10:25,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:10:25,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:10:25,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:10:25,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:10:25,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:10:25,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:10:25,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:10:25,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:10:25,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 14:10:25,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 14:10:25,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:10:25,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:10:25,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> debea56186ef4ab268c0be4274b8e0822edc1b01 [2020-12-02 14:10:26,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:10:26,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:10:26,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:10:26,067 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:10:26,068 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:10:26,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-zero-sum1.i [2020-12-02 14:10:26,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/389bd45a7/9d585e023d314a34bba11caab24c3ffe/FLAG6f8a6f5ed [2020-12-02 14:10:26,972 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:10:26,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-zero-sum1.i [2020-12-02 14:10:26,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/389bd45a7/9d585e023d314a34bba11caab24c3ffe/FLAG6f8a6f5ed [2020-12-02 14:10:27,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/389bd45a7/9d585e023d314a34bba11caab24c3ffe [2020-12-02 14:10:27,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:10:27,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:10:27,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:10:27,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:10:27,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:10:27,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:10:27" (1/1) ... [2020-12-02 14:10:27,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b30f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27, skipping insertion in model container [2020-12-02 14:10:27,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:10:27" (1/1) ... [2020-12-02 14:10:27,285 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:10:27,329 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:10:27,625 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2020-12-02 14:10:27,634 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:10:27,644 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:10:27,666 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2020-12-02 14:10:27,668 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:10:27,686 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:10:27,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27 WrapperNode [2020-12-02 14:10:27,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:10:27,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:10:27,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:10:27,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:10:27,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27" (1/1) ... [2020-12-02 14:10:27,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27" (1/1) ... [2020-12-02 14:10:27,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:10:27,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:10:27,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:10:27,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:10:27,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27" (1/1) ... [2020-12-02 14:10:27,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27" (1/1) ... [2020-12-02 14:10:27,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27" (1/1) ... [2020-12-02 14:10:27,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27" (1/1) ... [2020-12-02 14:10:27,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27" (1/1) ... [2020-12-02 14:10:27,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27" (1/1) ... [2020-12-02 14:10:27,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27" (1/1) ... [2020-12-02 14:10:27,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:10:27,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:10:27,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:10:27,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:10:27,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27" (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 [2020-12-02 14:10:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 14:10:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:10:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 14:10:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:10:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:10:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 14:10:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 14:10:28,252 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:10:28,253 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-02 14:10:28,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:10:28 BoogieIcfgContainer [2020-12-02 14:10:28,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:10:28,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:10:28,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:10:28,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:10:28,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:10:27" (1/3) ... [2020-12-02 14:10:28,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0ac6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:10:28, skipping insertion in model container [2020-12-02 14:10:28,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:27" (2/3) ... [2020-12-02 14:10:28,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0ac6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:10:28, skipping insertion in model container [2020-12-02 14:10:28,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:10:28" (3/3) ... [2020-12-02 14:10:28,264 INFO L111 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2020-12-02 14:10:28,283 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:10:28,291 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:10:28,308 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:10:28,350 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:10:28,350 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:10:28,351 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:10:28,351 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:10:28,351 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:10:28,351 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:10:28,351 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:10:28,352 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:10:28,369 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-02 14:10:28,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-02 14:10:28,375 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:10:28,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-02 14:10:28,376 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:10:28,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:10:28,388 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-02 14:10:28,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 14:10:28,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717728596] [2020-12-02 14:10:28,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 14:10:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:10:28,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:10:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:10:28,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:10:28,654 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 14:10:28,655 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 14:10:28,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 14:10:28,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:10:28 BoogieIcfgContainer [2020-12-02 14:10:28,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:10:28,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:10:28,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:10:28,700 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:10:28,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:10:28" (3/4) ... [2020-12-02 14:10:28,711 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 14:10:28,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:10:28,717 INFO L168 Benchmark]: Toolchain (without parser) took 1500.55 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.2 MB in the beginning and 30.1 MB in the end (delta: -9.9 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:28,720 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 44.0 MB. Free memory is still 29.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:10:28,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.21 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.0 MB in the beginning and 29.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:28,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.35 ms. Allocated memory is still 54.5 MB. Free memory was 29.5 MB in the beginning and 28.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:28,724 INFO L168 Benchmark]: Boogie Preprocessor took 24.42 ms. Allocated memory is still 54.5 MB. Free memory was 28.2 MB in the beginning and 27.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:10:28,725 INFO L168 Benchmark]: RCFGBuilder took 501.55 ms. Allocated memory is still 54.5 MB. Free memory was 27.0 MB in the beginning and 28.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:28,727 INFO L168 Benchmark]: TraceAbstraction took 440.14 ms. Allocated memory is still 54.5 MB. Free memory was 28.3 MB in the beginning and 30.3 MB in the end (delta: -2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:10:28,728 INFO L168 Benchmark]: Witness Printer took 13.00 ms. Allocated memory is still 54.5 MB. Free memory was 30.3 MB in the beginning and 30.1 MB in the end (delta: 261.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:10:28,744 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 44.0 MB. Free memory is still 29.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 466.21 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.0 MB in the beginning and 29.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.35 ms. Allocated memory is still 54.5 MB. Free memory was 29.5 MB in the beginning and 28.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.42 ms. Allocated memory is still 54.5 MB. Free memory was 28.2 MB in the beginning and 27.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 501.55 ms. Allocated memory is still 54.5 MB. Free memory was 27.0 MB in the beginning and 28.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 440.14 ms. Allocated memory is still 54.5 MB. Free memory was 28.3 MB in the beginning and 30.3 MB in the end (delta: -2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 13.00 ms. Allocated memory is still 54.5 MB. Free memory was 30.3 MB in the beginning and 30.1 MB in the end (delta: 261.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 114]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 111, overapproximation of someUnaryDOUBLE_SMToperation at line 122. Possible FailurePath: [L111] float sum = a + b; [L112] union mix m; [L113] m.f = sum [L114] EXPR m.i [L114] COND TRUE !(m.i != 0x80000000) [L114] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, 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 0.2.0-2880296 [2020-12-02 14:10:32,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:10:32,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:10:32,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:10:32,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:10:32,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:10:32,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:10:32,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:10:32,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:10:32,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:10:32,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:10:32,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:10:32,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:10:32,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:10:32,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:10:32,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:10:32,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:10:32,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:10:32,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:10:32,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:10:32,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:10:32,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:10:32,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:10:32,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:10:32,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:10:32,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:10:32,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:10:32,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:10:32,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:10:32,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:10:32,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:10:32,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:10:32,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:10:32,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:10:32,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:10:32,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:10:32,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:10:32,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:10:32,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:10:32,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:10:32,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:10:32,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 14:10:32,653 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:10:32,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:10:32,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:10:32,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:10:32,656 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:10:32,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:10:32,656 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:10:32,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:10:32,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:10:32,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:10:32,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:10:32,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:10:32,657 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 14:10:32,657 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 14:10:32,657 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:10:32,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:10:32,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:10:32,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:10:32,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:10:32,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:10:32,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:10:32,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:10:32,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:10:32,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:10:32,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:10:32,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:10:32,660 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 14:10:32,660 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 14:10:32,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:10:32,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:10:32,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 14:10:32,661 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> debea56186ef4ab268c0be4274b8e0822edc1b01 [2020-12-02 14:10:33,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:10:33,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:10:33,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:10:33,255 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:10:33,256 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:10:33,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-zero-sum1.i [2020-12-02 14:10:33,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/253f69e80/e7e58d970bad45efa330c8d2f4c3ae61/FLAGf2e075684 [2020-12-02 14:10:34,256 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:10:34,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-zero-sum1.i [2020-12-02 14:10:34,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/253f69e80/e7e58d970bad45efa330c8d2f4c3ae61/FLAGf2e075684 [2020-12-02 14:10:34,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/253f69e80/e7e58d970bad45efa330c8d2f4c3ae61 [2020-12-02 14:10:34,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:10:34,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:10:34,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:10:34,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:10:34,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:10:34,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:10:34" (1/1) ... [2020-12-02 14:10:34,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b840568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:34, skipping insertion in model container [2020-12-02 14:10:34,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:10:34" (1/1) ... [2020-12-02 14:10:34,644 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:10:34,685 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:10:34,969 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2020-12-02 14:10:34,980 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:10:35,005 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:10:35,042 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2020-12-02 14:10:35,053 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:10:35,086 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:10:35,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35 WrapperNode [2020-12-02 14:10:35,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:10:35,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:10:35,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:10:35,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:10:35,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35" (1/1) ... [2020-12-02 14:10:35,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35" (1/1) ... [2020-12-02 14:10:35,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:10:35,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:10:35,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:10:35,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:10:35,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35" (1/1) ... [2020-12-02 14:10:35,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35" (1/1) ... [2020-12-02 14:10:35,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35" (1/1) ... [2020-12-02 14:10:35,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35" (1/1) ... [2020-12-02 14:10:35,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35" (1/1) ... [2020-12-02 14:10:35,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35" (1/1) ... [2020-12-02 14:10:35,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35" (1/1) ... [2020-12-02 14:10:35,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:10:35,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:10:35,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:10:35,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:10:35,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35" (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 [2020-12-02 14:10:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 14:10:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 14:10:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:10:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 14:10:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:10:35,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:10:35,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-02 14:10:35,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 14:10:35,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 14:10:35,987 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:10:35,990 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-02 14:10:35,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:10:35 BoogieIcfgContainer [2020-12-02 14:10:35,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:10:35,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:10:35,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:10:36,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:10:36,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:10:34" (1/3) ... [2020-12-02 14:10:36,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12debca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:10:36, skipping insertion in model container [2020-12-02 14:10:36,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:35" (2/3) ... [2020-12-02 14:10:36,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12debca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:10:36, skipping insertion in model container [2020-12-02 14:10:36,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:10:35" (3/3) ... [2020-12-02 14:10:36,019 INFO L111 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2020-12-02 14:10:36,056 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:10:36,066 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:10:36,092 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:10:36,148 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:10:36,149 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:10:36,149 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:10:36,149 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:10:36,156 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:10:36,156 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:10:36,157 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:10:36,157 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:10:36,183 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-02 14:10:36,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-02 14:10:36,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:10:36,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-02 14:10:36,193 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:10:36,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:10:36,204 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-02 14:10:36,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:10:36,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772584118] [2020-12-02 14:10:36,232 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 [2020-12-02 14:10:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:10:36,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-02 14:10:36,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:10:39,164 WARN L197 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-02 14:10:39,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:10:39,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:10:44,244 WARN L197 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-02 14:10:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:10:44,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772584118] [2020-12-02 14:10:44,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:10:44,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-02 14:10:44,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770679926] [2020-12-02 14:10:44,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 14:10:44,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:10:44,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 14:10:44,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2020-12-02 14:10:44,276 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-12-02 14:10:48,028 WARN L197 SmtUtils]: Spent 3.04 s on a formula simplification that was a NOOP. DAG size: 48 [2020-12-02 14:10:49,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:10:49,194 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-12-02 14:10:49,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 14:10:49,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-12-02 14:10:49,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:10:49,231 INFO L225 Difference]: With dead ends: 15 [2020-12-02 14:10:49,232 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 14:10:49,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2020-12-02 14:10:49,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 14:10:49,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 14:10:49,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 14:10:49,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 14:10:49,297 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-02 14:10:49,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:10:49,302 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 14:10:49,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 14:10:49,303 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 14:10:49,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 14:10:49,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 14:10:49,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 14:10:49,747 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 14:10:49,747 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 14:10:49,748 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 14:10:49,748 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 14:10:49,748 INFO L258 CegarLoopResult]: At program point L123(lines 119 124) the Hoare annotation is: (= roundNearestTiesToEven ~CRM) [2020-12-02 14:10:49,748 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 114) no Hoare annotation was computed. [2020-12-02 14:10:49,749 INFO L258 CegarLoopResult]: At program point L116(lines 110 117) the Hoare annotation is: (= roundNearestTiesToEven ~CRM) [2020-12-02 14:10:49,749 INFO L262 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-12-02 14:10:49,749 INFO L262 CegarLoopResult]: For program point L114-1(line 114) no Hoare annotation was computed. [2020-12-02 14:10:49,750 INFO L262 CegarLoopResult]: For program point L114-3(line 114) no Hoare annotation was computed. [2020-12-02 14:10:49,772 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:10:49,786 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:10:49,788 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:10:49,789 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:10:49,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:10:49 BoogieIcfgContainer [2020-12-02 14:10:49,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:10:49,796 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:10:49,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:10:49,797 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:10:49,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:10:35" (3/4) ... [2020-12-02 14:10:49,801 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 14:10:49,830 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-02 14:10:49,831 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-02 14:10:49,832 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 14:10:49,833 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 14:10:49,952 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 14:10:49,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:10:49,955 INFO L168 Benchmark]: Toolchain (without parser) took 15364.22 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.2 MB in the beginning and 34.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:49,956 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 39.8 MB. Free memory is still 21.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:10:49,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.11 ms. Allocated memory is still 52.4 MB. Free memory was 28.9 MB in the beginning and 31.4 MB in the end (delta: -2.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:49,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.53 ms. Allocated memory is still 52.4 MB. Free memory was 31.3 MB in the beginning and 29.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:49,961 INFO L168 Benchmark]: Boogie Preprocessor took 69.90 ms. Allocated memory is still 52.4 MB. Free memory was 29.7 MB in the beginning and 28.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:49,963 INFO L168 Benchmark]: RCFGBuilder took 757.29 ms. Allocated memory is still 52.4 MB. Free memory was 28.6 MB in the beginning and 29.0 MB in the end (delta: -435.6 kB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:49,964 INFO L168 Benchmark]: TraceAbstraction took 13794.45 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.6 MB in the beginning and 36.8 MB in the end (delta: -8.2 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:49,965 INFO L168 Benchmark]: Witness Printer took 156.57 ms. Allocated memory is still 62.9 MB. Free memory was 36.8 MB in the beginning and 34.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:10:49,977 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 39.8 MB. Free memory is still 21.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 487.11 ms. Allocated memory is still 52.4 MB. Free memory was 28.9 MB in the beginning and 31.4 MB in the end (delta: -2.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.53 ms. Allocated memory is still 52.4 MB. Free memory was 31.3 MB in the beginning and 29.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.90 ms. Allocated memory is still 52.4 MB. Free memory was 29.7 MB in the beginning and 28.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 757.29 ms. Allocated memory is still 52.4 MB. Free memory was 28.6 MB in the beginning and 29.0 MB in the end (delta: -435.6 kB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13794.45 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.6 MB in the beginning and 36.8 MB in the end (delta: -8.2 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. * Witness Printer took 156.57 ms. Allocated memory is still 62.9 MB. Free memory was 36.8 MB in the beginning and 34.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 114]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 119]: Loop Invariant [2020-12-02 14:10:49,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:10:49,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~roundNearestTiesToEven == unknown-~CRM-unknown - InvariantResult [Line: 110]: Loop Invariant [2020-12-02 14:10:49,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:10:49,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~roundNearestTiesToEven == unknown-~CRM-unknown - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 5 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7s 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 630 SizeOfPredicates, 15 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 14 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...