./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 ................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 ..................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:15:47,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:15:47,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:15:47,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:15:47,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:15:47,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:15:47,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:15:47,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:15:47,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:15:47,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:15:47,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:15:47,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:15:47,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:15:47,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:15:47,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:15:47,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:15:47,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:15:47,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:15:47,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:15:47,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:15:47,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:15:47,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:15:47,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:15:47,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:15:47,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:15:47,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:15:47,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:15:47,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:15:47,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:15:47,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:15:47,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:15:47,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:15:47,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:15:47,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:15:47,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:15:47,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:15:47,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:15:47,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:15:47,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:15:47,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:15:47,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:15:47,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:15:47,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:15:47,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:15:47,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:15:47,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:15:47,403 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:15:47,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:15:47,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:15:47,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:15:47,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:15:47,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:15:47,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:15:47,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:15:47,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:15:47,406 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:15:47,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:15:47,406 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:15:47,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:15:47,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:15:47,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:15:47,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:15:47,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:15:47,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:15:47,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:15:47,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:15:47,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:15:47,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:15:47,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:15:47,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:15:47,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:15:47,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2020-10-20 00:15:47,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:15:47,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:15:47,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:15:47,646 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:15:47,646 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:15:47,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-20 00:15:47,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/659752168/e8d92444427544108e03cfd5d8c88563/FLAGc52d68915 [2020-10-20 00:15:48,271 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:15:48,272 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-20 00:15:48,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/659752168/e8d92444427544108e03cfd5d8c88563/FLAGc52d68915 [2020-10-20 00:15:48,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/659752168/e8d92444427544108e03cfd5d8c88563 [2020-10-20 00:15:48,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:15:48,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:15:48,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:48,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:15:48,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:15:48,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:48" (1/1) ... [2020-10-20 00:15:48,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6abf5b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48, skipping insertion in model container [2020-10-20 00:15:48,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:48" (1/1) ... [2020-10-20 00:15:48,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:15:48,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:15:48,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:48,958 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:15:48,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:48,997 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:15:48,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48 WrapperNode [2020-10-20 00:15:48,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:48,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:48,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:15:49,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:15:49,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48" (1/1) ... [2020-10-20 00:15:49,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48" (1/1) ... [2020-10-20 00:15:49,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:49,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:15:49,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:15:49,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:15:49,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48" (1/1) ... [2020-10-20 00:15:49,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48" (1/1) ... [2020-10-20 00:15:49,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48" (1/1) ... [2020-10-20 00:15:49,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48" (1/1) ... [2020-10-20 00:15:49,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48" (1/1) ... [2020-10-20 00:15:49,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48" (1/1) ... [2020-10-20 00:15:49,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48" (1/1) ... [2020-10-20 00:15:49,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:15:49,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:15:49,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:15:49,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:15:49,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:15:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:15:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:15:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:15:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:15:49,403 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:15:49,403 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-20 00:15:49,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:49 BoogieIcfgContainer [2020-10-20 00:15:49,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:15:49,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:15:49,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:15:49,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:15:49,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:15:48" (1/3) ... [2020-10-20 00:15:49,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a5b11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:49, skipping insertion in model container [2020-10-20 00:15:49,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:48" (2/3) ... [2020-10-20 00:15:49,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a5b11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:49, skipping insertion in model container [2020-10-20 00:15:49,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:49" (3/3) ... [2020-10-20 00:15:49,414 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2020-10-20 00:15:49,428 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:15:49,436 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-20 00:15:49,457 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-20 00:15:49,494 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:15:49,494 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:15:49,494 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:15:49,494 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:15:49,495 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:15:49,495 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:15:49,495 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:15:49,495 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:15:49,517 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-20 00:15:49,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:15:49,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:15:49,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:15:49,525 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:15:49,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:15:49,531 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-20 00:15:49,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:15:49,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451434275] [2020-10-20 00:15:49,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:15:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:15:49,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:15:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:15:49,692 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:15:49,716 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:15:49,718 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:15:49,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:15:49,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:15:49 BoogieIcfgContainer [2020-10-20 00:15:49,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:15:49,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:15:49,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:15:49,747 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:15:49,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:49" (3/4) ... [2020-10-20 00:15:49,753 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:15:49,754 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:15:49,757 INFO L168 Benchmark]: Toolchain (without parser) took 1054.42 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 22.0 MB in the beginning and 22.5 MB in the end (delta: -477.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:49,758 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 32.5 MB. Free memory was 9.7 MB in the beginning and 9.6 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:49,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.53 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 21.1 MB in the beginning and 22.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:49,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.78 ms. Allocated memory is still 44.0 MB. Free memory was 22.1 MB in the beginning and 20.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:49,762 INFO L168 Benchmark]: Boogie Preprocessor took 25.64 ms. Allocated memory is still 44.0 MB. Free memory was 20.3 MB in the beginning and 18.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:49,763 INFO L168 Benchmark]: RCFGBuilder took 338.03 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 18.9 MB in the beginning and 20.1 MB in the end (delta: -1.2 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:49,764 INFO L168 Benchmark]: TraceAbstraction took 339.39 ms. Allocated memory was 45.6 MB in the beginning and 46.1 MB in the end (delta: 524.3 kB). Free memory was 19.7 MB in the beginning and 23.0 MB in the end (delta: -3.4 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:15:49,765 INFO L168 Benchmark]: Witness Printer took 7.84 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 22.5 MB in the end (delta: 555.8 kB). Peak memory consumption was 555.8 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:49,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 32.5 MB. Free memory was 9.7 MB in the beginning and 9.6 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 290.53 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 21.1 MB in the beginning and 22.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 41.78 ms. Allocated memory is still 44.0 MB. Free memory was 22.1 MB in the beginning and 20.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 25.64 ms. Allocated memory is still 44.0 MB. Free memory was 20.3 MB in the beginning and 18.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 338.03 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 18.9 MB in the beginning and 20.1 MB in the end (delta: -1.2 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 339.39 ms. Allocated memory was 45.6 MB in the beginning and 46.1 MB in the end (delta: 524.3 kB). Free memory was 19.7 MB in the beginning and 23.0 MB in the end (delta: -3.4 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 7.84 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 22.5 MB in the end (delta: 555.8 kB). Peak memory consumption was 555.8 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 5. Possible FailurePath: [L5] const float plus_infinity = 1.0f/0.0f; [L6] const float minus_infinity = 0.0f/-0.0f; [L7] const float NaN = 0.0f * (1.0f/0.0f); [L11] _Bool temp; [L14] temp = NaN < plus_infinity [L15] COND TRUE !(!temp) [L3] __assert_fail("0", "float13.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:15:51,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:15:51,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:15:51,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:15:51,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:15:51,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:15:51,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:15:51,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:15:51,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:15:51,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:15:51,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:15:51,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:15:51,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:15:51,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:15:51,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:15:51,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:15:51,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:15:51,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:15:51,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:15:51,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:15:51,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:15:51,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:15:51,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:15:51,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:15:51,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:15:51,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:15:51,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:15:51,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:15:51,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:15:51,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:15:51,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:15:51,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:15:51,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:15:51,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:15:51,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:15:51,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:15:51,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:15:51,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:15:51,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:15:51,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:15:51,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:15:51,994 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:15:52,042 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:15:52,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:15:52,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:15:52,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:15:52,045 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:15:52,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:15:52,046 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:15:52,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:15:52,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:15:52,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:15:52,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:15:52,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:15:52,048 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:15:52,049 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:15:52,049 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:15:52,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:15:52,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:15:52,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:15:52,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:15:52,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:15:52,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:15:52,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:15:52,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:15:52,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:15:52,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:15:52,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:15:52,053 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:15:52,054 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:15:52,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:15:52,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:15:52,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:15:52,054 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2020-10-20 00:15:52,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:15:52,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:15:52,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:15:52,350 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:15:52,350 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:15:52,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-20 00:15:52,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b0a2b90/9486c541c8a04c08b25811a60e19c3a8/FLAG327abe20b [2020-10-20 00:15:52,856 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:15:52,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-10-20 00:15:52,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b0a2b90/9486c541c8a04c08b25811a60e19c3a8/FLAG327abe20b [2020-10-20 00:15:53,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b0a2b90/9486c541c8a04c08b25811a60e19c3a8 [2020-10-20 00:15:53,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:15:53,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:15:53,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:53,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:15:53,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:15:53,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:53" (1/1) ... [2020-10-20 00:15:53,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436b88a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53, skipping insertion in model container [2020-10-20 00:15:53,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:53" (1/1) ... [2020-10-20 00:15:53,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:15:53,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:15:53,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:53,484 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:15:53,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:53,522 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:15:53,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53 WrapperNode [2020-10-20 00:15:53,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:53,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:53,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:15:53,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:15:53,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53" (1/1) ... [2020-10-20 00:15:53,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53" (1/1) ... [2020-10-20 00:15:53,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:53,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:15:53,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:15:53,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:15:53,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53" (1/1) ... [2020-10-20 00:15:53,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53" (1/1) ... [2020-10-20 00:15:53,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53" (1/1) ... [2020-10-20 00:15:53,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53" (1/1) ... [2020-10-20 00:15:53,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53" (1/1) ... [2020-10-20 00:15:53,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53" (1/1) ... [2020-10-20 00:15:53,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53" (1/1) ... [2020-10-20 00:15:53,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:15:53,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:15:53,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:15:53,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:15:53,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:15:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:15:53,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:15:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:15:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:15:53,947 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:15:53,948 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-20 00:15:53,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:53 BoogieIcfgContainer [2020-10-20 00:15:53,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:15:53,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:15:53,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:15:53,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:15:53,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:15:53" (1/3) ... [2020-10-20 00:15:53,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492a4cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:53, skipping insertion in model container [2020-10-20 00:15:53,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:53" (2/3) ... [2020-10-20 00:15:53,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492a4cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:53, skipping insertion in model container [2020-10-20 00:15:53,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:53" (3/3) ... [2020-10-20 00:15:53,960 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2020-10-20 00:15:53,973 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:15:53,986 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-20 00:15:54,003 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-20 00:15:54,043 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:15:54,047 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:15:54,047 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:15:54,048 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:15:54,048 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:15:54,048 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:15:54,048 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:15:54,048 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:15:54,092 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-20 00:15:54,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:15:54,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:15:54,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:15:54,103 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:15:54,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:15:54,110 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-20 00:15:54,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:15:54,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466961056] [2020-10-20 00:15:54,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 00:15:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:15:54,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 00:15:54,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:15:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:15:54,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:15:54,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:15:54,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466961056] [2020-10-20 00:15:54,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:15:54,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-20 00:15:54,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868596724] [2020-10-20 00:15:54,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 00:15:54,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:15:54,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 00:15:54,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 00:15:54,449 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-10-20 00:15:54,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:15:54,672 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2020-10-20 00:15:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:15:54,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-10-20 00:15:54,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:15:54,683 INFO L225 Difference]: With dead ends: 63 [2020-10-20 00:15:54,684 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:15:54,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:15:54,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:15:54,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:15:54,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:15:54,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:15:54,715 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-20 00:15:54,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:15:54,716 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:15:54,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 00:15:54,716 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:15:54,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:15:54,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:15:54,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:15:54,980 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,980 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-20 00:15:54,981 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,981 INFO L274 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-10-20 00:15:54,981 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-20 00:15:54,981 INFO L274 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-10-20 00:15:54,982 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-20 00:15:54,982 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,982 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,982 INFO L274 CegarLoopResult]: For program point L36-2(line 36) no Hoare annotation was computed. [2020-10-20 00:15:54,982 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,982 INFO L274 CegarLoopResult]: For program point L3-3(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,982 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:15:54,983 INFO L274 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,983 INFO L274 CegarLoopResult]: For program point L3-5(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,983 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,984 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:15:54,984 INFO L274 CegarLoopResult]: For program point L3-6(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,984 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:15:54,984 INFO L274 CegarLoopResult]: For program point L3-7(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,985 INFO L274 CegarLoopResult]: For program point L3-8(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,985 INFO L274 CegarLoopResult]: For program point L3-9(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,985 INFO L274 CegarLoopResult]: For program point L3-10(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,985 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,985 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-20 00:15:54,986 INFO L274 CegarLoopResult]: For program point L3-11(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,986 INFO L274 CegarLoopResult]: For program point L3-12(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,986 INFO L274 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-10-20 00:15:54,986 INFO L274 CegarLoopResult]: For program point L3-13(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,987 INFO L274 CegarLoopResult]: For program point L3-14(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,987 INFO L274 CegarLoopResult]: For program point L3-15(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,987 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-20 00:15:54,987 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:15:54,987 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,988 INFO L274 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-10-20 00:15:54,988 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,988 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-20 00:15:54,988 INFO L274 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-10-20 00:15:54,989 INFO L270 CegarLoopResult]: At program point L38(lines 9 39) the Hoare annotation is: (and (= (_ bv0 8) ULTIMATE.start_main_~temp~0) (exists ((currentRoundingMode RoundingMode)) (= ~NaN~0 (fp.mul currentRoundingMode (_ +zero 8 24) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))))) [2020-10-20 00:15:54,989 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,990 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-20 00:15:54,990 INFO L274 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-10-20 00:15:54,990 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:15:54,990 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-10-20 00:15:54,991 INFO L274 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-10-20 00:15:55,000 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:15:55,001 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:15:55,002 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:15:55,009 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:15:55,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:15:55,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:15:55,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:15:55 BoogieIcfgContainer [2020-10-20 00:15:55,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:15:55,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:15:55,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:15:55,015 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:15:55,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:53" (3/4) ... [2020-10-20 00:15:55,019 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:15:55,058 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-20 00:15:55,059 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 00:15:55,059 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:15:55,059 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:15:55,085 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 0bv8 == temp && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) [2020-10-20 00:15:55,114 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:15:55,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:15:55,117 INFO L168 Benchmark]: Toolchain (without parser) took 1947.11 ms. Allocated memory was 35.1 MB in the beginning and 47.7 MB in the end (delta: 12.6 MB). Free memory was 13.3 MB in the beginning and 25.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:55,118 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory was 18.9 MB in the beginning and 18.9 MB in the end (delta: 31.0 kB). Peak memory consumption was 31.0 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:55,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.45 ms. Allocated memory was 35.1 MB in the beginning and 44.0 MB in the end (delta: 8.9 MB). Free memory was 12.5 MB in the beginning and 24.1 MB in the end (delta: -11.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:55,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.52 ms. Allocated memory is still 44.0 MB. Free memory was 24.1 MB in the beginning and 22.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:55,120 INFO L168 Benchmark]: Boogie Preprocessor took 27.07 ms. Allocated memory is still 44.0 MB. Free memory was 22.3 MB in the beginning and 20.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:55,121 INFO L168 Benchmark]: RCFGBuilder took 359.73 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 20.6 MB in the beginning and 16.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:55,121 INFO L168 Benchmark]: TraceAbstraction took 1061.68 ms. Allocated memory was 45.6 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Free memory was 15.7 MB in the beginning and 11.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:55,122 INFO L168 Benchmark]: Witness Printer took 100.44 ms. Allocated memory is still 47.7 MB. Free memory was 11.1 MB in the beginning and 25.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 393.3 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:55,127 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory was 18.9 MB in the beginning and 18.9 MB in the end (delta: 31.0 kB). Peak memory consumption was 31.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 349.45 ms. Allocated memory was 35.1 MB in the beginning and 44.0 MB in the end (delta: 8.9 MB). Free memory was 12.5 MB in the beginning and 24.1 MB in the end (delta: -11.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 39.52 ms. Allocated memory is still 44.0 MB. Free memory was 24.1 MB in the beginning and 22.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 27.07 ms. Allocated memory is still 44.0 MB. Free memory was 22.3 MB in the beginning and 20.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 359.73 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 20.6 MB in the beginning and 16.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1061.68 ms. Allocated memory was 45.6 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Free memory was 15.7 MB in the beginning and 11.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. * Witness Printer took 100.44 ms. Allocated memory is still 47.7 MB. Free memory was 11.1 MB in the beginning and 25.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 393.3 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant [2020-10-20 00:15:55,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:15:55,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:15:55,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:15:55,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:15:55,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:15:55,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: 0bv8 == temp && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 23 SDslu, 1 SDs, 0 SdLazy, 16 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 75 SizeOfPredicates, 4 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 3 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...