./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e20164d66b413fd1e6480d779b873570f1c551b2 .................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e20164d66b413fd1e6480d779b873570f1c551b2 ............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:40:29,356 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:40:29,362 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:40:29,378 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:40:29,378 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:40:29,382 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:40:29,384 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:40:29,388 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:40:29,391 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:40:29,392 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:40:29,394 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:40:29,394 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:40:29,395 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:40:29,398 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:40:29,405 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:40:29,406 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:40:29,406 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:40:29,411 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:40:29,416 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:40:29,420 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:40:29,421 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:40:29,422 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:40:29,425 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:40:29,426 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:40:29,426 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:40:29,428 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:40:29,429 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:40:29,432 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:40:29,434 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:40:29,436 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:40:29,437 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:40:29,438 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:40:29,438 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:40:29,438 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:40:29,441 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:40:29,443 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:40:29,445 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:40:29,471 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:40:29,472 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:40:29,473 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:40:29,473 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:40:29,473 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:40:29,479 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:40:29,480 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:40:29,480 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:40:29,480 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:40:29,480 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:40:29,480 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:40:29,481 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:40:29,481 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:40:29,481 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:40:29,481 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:40:29,481 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:40:29,481 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:40:29,484 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:40:29,485 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:40:29,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:40:29,485 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:40:29,485 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:40:29,485 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:40:29,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:29,486 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:40:29,486 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:40:29,486 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:40:29,486 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:40:29,486 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:40:29,487 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:40:29,488 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e20164d66b413fd1e6480d779b873570f1c551b2 [2018-11-28 17:40:29,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:40:29,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:40:29,565 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:40:29,566 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:40:29,567 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:40:29,568 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:29,624 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edede22f7/be3d05fcaf1c428fbb8775af4ae47e23/FLAGffd180358 [2018-11-28 17:40:30,073 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:30,074 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:30,080 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edede22f7/be3d05fcaf1c428fbb8775af4ae47e23/FLAGffd180358 [2018-11-28 17:40:30,433 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edede22f7/be3d05fcaf1c428fbb8775af4ae47e23 [2018-11-28 17:40:30,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:30,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:30,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:30,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:30,448 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:30,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:30" (1/1) ... [2018-11-28 17:40:30,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7289ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30, skipping insertion in model container [2018-11-28 17:40:30,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:30" (1/1) ... [2018-11-28 17:40:30,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:30,486 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:30,719 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:30,726 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:30,746 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:30,765 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:30,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30 WrapperNode [2018-11-28 17:40:30,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:30,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:30,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:30,768 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:30,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30" (1/1) ... [2018-11-28 17:40:30,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30" (1/1) ... [2018-11-28 17:40:30,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:30,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:30,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:30,795 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:30,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30" (1/1) ... [2018-11-28 17:40:30,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30" (1/1) ... [2018-11-28 17:40:30,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30" (1/1) ... [2018-11-28 17:40:30,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30" (1/1) ... [2018-11-28 17:40:30,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30" (1/1) ... [2018-11-28 17:40:30,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30" (1/1) ... [2018-11-28 17:40:30,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30" (1/1) ... [2018-11-28 17:40:30,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:30,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:30,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:30,828 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:30,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:30,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:30,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:30,958 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:40:30,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:40:31,147 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:31,147 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:31,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:31 BoogieIcfgContainer [2018-11-28 17:40:31,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:31,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:31,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:31,152 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:31,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:30" (1/3) ... [2018-11-28 17:40:31,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fe036f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:31, skipping insertion in model container [2018-11-28 17:40:31,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:30" (2/3) ... [2018-11-28 17:40:31,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fe036f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:31, skipping insertion in model container [2018-11-28 17:40:31,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:31" (3/3) ... [2018-11-28 17:40:31,155 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:31,166 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:31,174 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:31,191 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:31,223 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:31,224 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:31,224 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:31,224 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:31,224 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:31,224 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:31,224 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:31,225 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:31,225 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:31,248 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 17:40:31,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 17:40:31,254 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:31,255 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:31,258 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:31,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:31,264 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-28 17:40:31,266 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:40:31,267 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:40:31,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:31,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:31,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:31,389 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:40:31,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:31 BoogieIcfgContainer [2018-11-28 17:40:31,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:31,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:31,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:31,424 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:31,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:31" (3/4) ... [2018-11-28 17:40:31,429 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:40:31,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:31,430 INFO L168 Benchmark]: Toolchain (without parser) took 989.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:31,434 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:31,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.66 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:31,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.89 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:31,438 INFO L168 Benchmark]: Boogie Preprocessor took 31.77 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:31,439 INFO L168 Benchmark]: RCFGBuilder took 320.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:31,441 INFO L168 Benchmark]: TraceAbstraction took 274.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:31,442 INFO L168 Benchmark]: Witness Printer took 5.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:31,450 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 323.66 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.89 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.77 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 320.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 274.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 14, overapproximation of someBinaryArithmeticDOUBLEoperation at line 11. Possible FailurePath: [L8] double x, y, z, r; [L10] x = 1e8 [L11] y = x + 1 [L12] z = x - 1 [L13] r = y - z VAL [x=100000000] [L14] CALL __VERIFIER_assert(r == 2.) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 17:40:33,900 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:40:33,902 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:40:33,915 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:40:33,916 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:40:33,917 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:40:33,919 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:40:33,921 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:40:33,923 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:40:33,924 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:40:33,925 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:40:33,925 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:40:33,926 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:40:33,927 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:40:33,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:40:33,930 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:40:33,931 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:40:33,933 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:40:33,935 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:40:33,937 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:40:33,938 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:40:33,940 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:40:33,942 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:40:33,943 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:40:33,943 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:40:33,944 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:40:33,945 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:40:33,946 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:40:33,947 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:40:33,949 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:40:33,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:40:33,950 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:40:33,950 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:40:33,951 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:40:33,952 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:40:33,953 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:40:33,953 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:40:33,969 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:40:33,970 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:40:33,970 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:40:33,971 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:40:33,972 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:40:33,972 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:40:33,972 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:40:33,972 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:40:33,973 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:40:33,973 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:40:33,973 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:40:33,973 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:40:33,973 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:40:33,974 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:40:33,975 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:40:33,975 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:40:33,975 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:40:33,975 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:40:33,976 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:40:33,976 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:40:33,976 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:40:33,976 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:40:33,976 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:40:33,976 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:40:33,978 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:33,978 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:40:33,978 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:40:33,978 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:40:33,978 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:40:33,979 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:40:33,979 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:40:33,979 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:40:33,980 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e20164d66b413fd1e6480d779b873570f1c551b2 [2018-11-28 17:40:34,020 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:40:34,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:40:34,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:40:34,041 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:40:34,042 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:40:34,043 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:34,110 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/394fcf14e/2632e2e26a3c4a1889764f3f4ccd5bbe/FLAG6c625d427 [2018-11-28 17:40:34,625 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:34,625 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:34,632 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/394fcf14e/2632e2e26a3c4a1889764f3f4ccd5bbe/FLAG6c625d427 [2018-11-28 17:40:34,951 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/394fcf14e/2632e2e26a3c4a1889764f3f4ccd5bbe [2018-11-28 17:40:34,955 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:34,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:34,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:34,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:34,963 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:34,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:34" (1/1) ... [2018-11-28 17:40:34,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a92968e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:34, skipping insertion in model container [2018-11-28 17:40:34,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:34" (1/1) ... [2018-11-28 17:40:34,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:34,994 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:35,200 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:35,211 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:35,232 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:35,252 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:35,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35 WrapperNode [2018-11-28 17:40:35,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:35,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:35,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:35,255 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:35,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35" (1/1) ... [2018-11-28 17:40:35,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35" (1/1) ... [2018-11-28 17:40:35,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:35,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:35,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:35,291 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:35,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35" (1/1) ... [2018-11-28 17:40:35,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35" (1/1) ... [2018-11-28 17:40:35,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35" (1/1) ... [2018-11-28 17:40:35,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35" (1/1) ... [2018-11-28 17:40:35,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35" (1/1) ... [2018-11-28 17:40:35,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35" (1/1) ... [2018-11-28 17:40:35,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35" (1/1) ... [2018-11-28 17:40:35,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:35,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:35,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:35,346 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:35,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35" (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 [2018-11-28 17:40:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:40:35,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:40:35,868 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:35,869 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:35,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:35 BoogieIcfgContainer [2018-11-28 17:40:35,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:35,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:35,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:35,877 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:35,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:34" (1/3) ... [2018-11-28 17:40:35,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cc9dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:35, skipping insertion in model container [2018-11-28 17:40:35,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:35" (2/3) ... [2018-11-28 17:40:35,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cc9dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:35, skipping insertion in model container [2018-11-28 17:40:35,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:35" (3/3) ... [2018-11-28 17:40:35,884 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact_true-unreach-call_true-termination.c [2018-11-28 17:40:35,896 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:35,903 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:35,920 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:35,951 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:35,953 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:35,953 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:35,953 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:35,954 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:35,954 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:35,954 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:35,955 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:35,955 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:35,973 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 17:40:35,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 17:40:35,980 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:35,981 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:35,984 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:35,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:35,990 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-28 17:40:35,994 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:35,995 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:36,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:36,323 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:36,494 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:36,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:36,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 17:40:36,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 17:40:36,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 17:40:36,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 17:40:36,532 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-28 17:40:36,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:36,628 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-28 17:40:36,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 17:40:36,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 17:40:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:36,638 INFO L225 Difference]: With dead ends: 24 [2018-11-28 17:40:36,638 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:40:36,643 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 17:40:36,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:40:36,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:40:36,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:40:36,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:40:36,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-28 17:40:36,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:36,672 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:40:36,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 17:40:36,673 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:40:36,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:40:36,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:40:36,742 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 17:40:36,743 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:40:36,743 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:40:36,743 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:40:36,743 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:40:36,743 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:40:36,745 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 .cse1) (fp.sub roundNearestTiesToEven .cse0 .cse1))) main_~r~0) [2018-11-28 17:40:36,745 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2018-11-28 17:40:36,745 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-28 17:40:36,745 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2018-11-28 17:40:36,745 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2018-11-28 17:40:36,746 INFO L448 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2018-11-28 17:40:36,746 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2018-11-28 17:40:36,746 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2018-11-28 17:40:36,746 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-28 17:40:36,746 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-28 17:40:36,746 INFO L448 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-11-28 17:40:36,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:36 BoogieIcfgContainer [2018-11-28 17:40:36,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:36,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:36,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:36,754 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:36,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:35" (3/4) ... [2018-11-28 17:40:36,759 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:40:36,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:40:36,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:40:36,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 17:40:36,775 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 17:40:36,776 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 17:40:36,776 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:40:36,776 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:40:36,825 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:40:36,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:36,827 INFO L168 Benchmark]: Toolchain (without parser) took 1870.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -149.0 MB). Peak memory consumption was 10.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:36,829 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:36,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.96 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:36,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.83 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:36,832 INFO L168 Benchmark]: Boogie Preprocessor took 54.63 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:36,833 INFO L168 Benchmark]: RCFGBuilder took 524.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -201.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:36,833 INFO L168 Benchmark]: TraceAbstraction took 881.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:36,835 INFO L168 Benchmark]: Witness Printer took 72.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:36,840 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.96 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.83 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.63 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 524.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -201.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 881.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 72.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 7 SDslu, 27 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 25 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 5 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...