./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/inv_square-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-benchs/inv_square-2.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 9b5f8c7f8f0f24b8f3c006680a1188ad2ebf7298 ......................................................................................................................................................................................................................... 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 -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 ../sv-benchmarks/c/float-benchs/inv_square-2.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 9b5f8c7f8f0f24b8f3c006680a1188ad2ebf7298 ......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 18:44:49,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:44:49,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:44:49,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:44:49,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:44:49,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:44:49,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:44:49,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:44:49,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:44:49,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:44:49,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:44:49,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:44:49,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:44:49,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:44:49,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:44:49,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:44:49,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:44:49,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:44:49,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:44:49,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:44:49,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:44:49,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:44:49,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:44:49,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:44:49,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:44:49,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:44:49,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:44:49,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:44:49,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:44:49,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:44:49,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:44:49,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:44:49,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:44:49,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:44:49,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:44:49,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:44:49,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:44:49,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:44:49,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:44:49,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:44:49,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:44:49,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:44:49,439 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:44:49,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:44:49,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:44:49,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:44:49,442 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:44:49,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:44:49,443 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:44:49,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:44:49,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:44:49,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:44:49,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:44:49,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:44:49,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:44:49,445 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:44:49,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:44:49,445 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:44:49,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:44:49,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:44:49,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:44:49,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:44:49,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:44:49,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:44:49,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:44:49,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:44:49,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:44:49,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:44:49,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:44:49,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:44:49,450 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(__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 -> 9b5f8c7f8f0f24b8f3c006680a1188ad2ebf7298 [2019-11-19 18:44:49,800 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:44:49,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:44:49,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:44:49,830 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:44:49,831 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:44:49,831 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_square-2.c [2019-11-19 18:44:49,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d5d74f9/a56179faa86449e98c8bd2fa10dc437d/FLAG95894f0a2 [2019-11-19 18:44:50,403 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:44:50,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_square-2.c [2019-11-19 18:44:50,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d5d74f9/a56179faa86449e98c8bd2fa10dc437d/FLAG95894f0a2 [2019-11-19 18:44:50,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d5d74f9/a56179faa86449e98c8bd2fa10dc437d [2019-11-19 18:44:50,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:44:50,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:44:50,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:44:50,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:44:50,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:44:50,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:44:50" (1/1) ... [2019-11-19 18:44:50,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6014aaf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:50, skipping insertion in model container [2019-11-19 18:44:50,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:44:50" (1/1) ... [2019-11-19 18:44:50,786 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:44:50,806 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:44:50,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:44:50,987 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:44:51,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:44:51,025 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:44:51,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51 WrapperNode [2019-11-19 18:44:51,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:44:51,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:44:51,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:44:51,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:44:51,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51" (1/1) ... [2019-11-19 18:44:51,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51" (1/1) ... [2019-11-19 18:44:51,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:44:51,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:44:51,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:44:51,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:44:51,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51" (1/1) ... [2019-11-19 18:44:51,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51" (1/1) ... [2019-11-19 18:44:51,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51" (1/1) ... [2019-11-19 18:44:51,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51" (1/1) ... [2019-11-19 18:44:51,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51" (1/1) ... [2019-11-19 18:44:51,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51" (1/1) ... [2019-11-19 18:44:51,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51" (1/1) ... [2019-11-19 18:44:51,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:44:51,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:44:51,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:44:51,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:44:51,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51" (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 [2019-11-19 18:44:51,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:44:51,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:44:51,354 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:44:51,355 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 18:44:51,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:51 BoogieIcfgContainer [2019-11-19 18:44:51,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:44:51,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:44:51,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:44:51,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:44:51,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:44:50" (1/3) ... [2019-11-19 18:44:51,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51010a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:51, skipping insertion in model container [2019-11-19 18:44:51,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:51" (2/3) ... [2019-11-19 18:44:51,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51010a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:51, skipping insertion in model container [2019-11-19 18:44:51,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:51" (3/3) ... [2019-11-19 18:44:51,364 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_square-2.c [2019-11-19 18:44:51,373 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:44:51,380 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 18:44:51,392 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 18:44:51,420 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:44:51,420 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:44:51,420 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:44:51,421 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:44:51,421 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:44:51,421 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:44:51,421 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:44:51,422 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:44:51,437 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-19 18:44:51,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 18:44:51,444 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:44:51,445 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 18:44:51,446 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:44:51,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:44:51,453 INFO L82 PathProgramCache]: Analyzing trace with hash 957382, now seen corresponding path program 1 times [2019-11-19 18:44:51,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:44:51,464 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900850246] [2019-11-19 18:44:51,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:44:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:44:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:44:51,575 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 18:44:51,576 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 18:44:51,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:44:51 BoogieIcfgContainer [2019-11-19 18:44:51,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:44:51,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:44:51,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:44:51,596 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:44:51,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:51" (3/4) ... [2019-11-19 18:44:51,601 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 18:44:51,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:44:51,604 INFO L168 Benchmark]: Toolchain (without parser) took 834.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -137.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:44:51,605 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:44:51,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:51,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:51,608 INFO L168 Benchmark]: Boogie Preprocessor took 21.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:44:51,609 INFO L168 Benchmark]: RCFGBuilder took 214.37 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: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:51,610 INFO L168 Benchmark]: TraceAbstraction took 237.09 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:51,611 INFO L168 Benchmark]: Witness Printer took 6.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:44:51,616 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 256.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 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 92.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 214.37 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: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 237.09 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * Witness Printer took 6.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryArithmeticFLOAToperation at line 18. Possible FailurePath: [L12] float x, y, z; [L14] x = __VERIFIER_nondet_float() [L17] COND TRUE x <= -1e-20f || x >= 1e-20f [L18] y = x * x [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 0.1.24-f6fb2bb [2019-11-19 18:44:53,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:44:53,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:44:53,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:44:53,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:44:53,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:44:53,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:44:53,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:44:53,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:44:53,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:44:53,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:44:53,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:44:53,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:44:53,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:44:53,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:44:53,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:44:53,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:44:53,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:44:53,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:44:53,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:44:53,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:44:53,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:44:53,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:44:53,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:44:53,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:44:53,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:44:53,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:44:53,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:44:53,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:44:53,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:44:53,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:44:53,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:44:53,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:44:53,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:44:53,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:44:53,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:44:53,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:44:53,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:44:53,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:44:53,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:44:53,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:44:53,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 18:44:53,867 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:44:53,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:44:53,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:44:53,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:44:53,874 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:44:53,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:44:53,875 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:44:53,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:44:53,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:44:53,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:44:53,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:44:53,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:44:53,878 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 18:44:53,880 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 18:44:53,880 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:44:53,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:44:53,881 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:44:53,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:44:53,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:44:53,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:44:53,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:44:53,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:44:53,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:44:53,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:44:53,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:44:53,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:44:53,885 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 18:44:53,885 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 18:44:53,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:44:53,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 18:44:53,886 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(__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 -> 9b5f8c7f8f0f24b8f3c006680a1188ad2ebf7298 [2019-11-19 18:44:54,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:44:54,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:44:54,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:44:54,233 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:44:54,234 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:44:54,234 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_square-2.c [2019-11-19 18:44:54,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71e5ad410/a1f048a6f47e4b43bfd31aec6382c979/FLAG4f5464bab [2019-11-19 18:44:54,744 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:44:54,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_square-2.c [2019-11-19 18:44:54,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71e5ad410/a1f048a6f47e4b43bfd31aec6382c979/FLAG4f5464bab [2019-11-19 18:44:55,130 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71e5ad410/a1f048a6f47e4b43bfd31aec6382c979 [2019-11-19 18:44:55,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:44:55,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:44:55,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:44:55,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:44:55,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:44:55,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:44:55" (1/1) ... [2019-11-19 18:44:55,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22045899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55, skipping insertion in model container [2019-11-19 18:44:55,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:44:55" (1/1) ... [2019-11-19 18:44:55,155 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:44:55,173 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:44:55,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:44:55,388 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:44:55,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:44:55,429 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:44:55,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55 WrapperNode [2019-11-19 18:44:55,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:44:55,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:44:55,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:44:55,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:44:55,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55" (1/1) ... [2019-11-19 18:44:55,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55" (1/1) ... [2019-11-19 18:44:55,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:44:55,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:44:55,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:44:55,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:44:55,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55" (1/1) ... [2019-11-19 18:44:55,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55" (1/1) ... [2019-11-19 18:44:55,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55" (1/1) ... [2019-11-19 18:44:55,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55" (1/1) ... [2019-11-19 18:44:55,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55" (1/1) ... [2019-11-19 18:44:55,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55" (1/1) ... [2019-11-19 18:44:55,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55" (1/1) ... [2019-11-19 18:44:55,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:44:55,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:44:55,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:44:55,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:44:55,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55" (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 [2019-11-19 18:44:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:44:55,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:44:56,138 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:44:56,139 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 18:44:56,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:56 BoogieIcfgContainer [2019-11-19 18:44:56,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:44:56,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:44:56,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:44:56,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:44:56,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:44:55" (1/3) ... [2019-11-19 18:44:56,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e719e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:56, skipping insertion in model container [2019-11-19 18:44:56,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:55" (2/3) ... [2019-11-19 18:44:56,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e719e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:56, skipping insertion in model container [2019-11-19 18:44:56,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:56" (3/3) ... [2019-11-19 18:44:56,150 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_square-2.c [2019-11-19 18:44:56,160 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:44:56,168 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 18:44:56,180 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 18:44:56,208 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:44:56,209 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:44:56,209 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:44:56,209 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:44:56,211 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:44:56,212 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:44:56,213 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:44:56,213 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:44:56,229 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-19 18:44:56,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 18:44:56,234 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:44:56,235 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 18:44:56,236 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:44:56,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:44:56,241 INFO L82 PathProgramCache]: Analyzing trace with hash 957382, now seen corresponding path program 1 times [2019-11-19 18:44:56,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 18:44:56,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335173164] [2019-11-19 18:44:56,251 INFO L94 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 [2019-11-19 18:44:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:44:56,409 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 18:44:56,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:44:56,490 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:57,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:44:57,486 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 18:44:59,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:44:59,015 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335173164] [2019-11-19 18:44:59,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:44:59,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-19 18:44:59,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155037472] [2019-11-19 18:44:59,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 18:44:59,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 18:44:59,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 18:44:59,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 18:44:59,046 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2019-11-19 18:44:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:44:59,209 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-11-19 18:44:59,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 18:44:59,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-11-19 18:44:59,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:44:59,217 INFO L225 Difference]: With dead ends: 19 [2019-11-19 18:44:59,217 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 18:44:59,220 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-19 18:44:59,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 18:44:59,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 18:44:59,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 18:44:59,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 18:44:59,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-19 18:44:59,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:44:59,244 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 18:44:59,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 18:44:59,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 18:44:59,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 18:44:59,460 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 18:44:59,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 18:44:59,550 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 18:44:59,550 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 18:44:59,550 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 18:44:59,550 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-19 18:44:59,551 INFO L440 ceAbstractionStarter]: At program point L22(lines 10 23) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.leq ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (fp.neg .cse0)))) [2019-11-19 18:44:59,551 INFO L444 ceAbstractionStarter]: For program point L17(lines 17 21) no Hoare annotation was computed. [2019-11-19 18:44:59,551 INFO L444 ceAbstractionStarter]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2019-11-19 18:44:59,551 INFO L444 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-11-19 18:44:59,551 INFO L444 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2019-11-19 18:44:59,552 INFO L440 ceAbstractionStarter]: At program point L8-3(line 8) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.leq ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (fp.neg .cse0)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) [2019-11-19 18:44:59,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,567 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,567 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,568 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,568 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:44:59 BoogieIcfgContainer [2019-11-19 18:44:59,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:44:59,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:44:59,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:44:59,572 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:44:59,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:56" (3/4) ... [2019-11-19 18:44:59,578 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 18:44:59,589 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-19 18:44:59,589 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-19 18:44:59,629 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 18:44:59,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:44:59,633 INFO L168 Benchmark]: Toolchain (without parser) took 4496.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -66.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:59,634 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:44:59,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.33 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:59,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:59,637 INFO L168 Benchmark]: Boogie Preprocessor took 39.29 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:59,638 INFO L168 Benchmark]: RCFGBuilder took 566.59 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:59,639 INFO L168 Benchmark]: TraceAbstraction took 3429.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:59,640 INFO L168 Benchmark]: Witness Printer took 58.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:44:59,647 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.33 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 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 102.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.29 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 566.59 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3429.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. * Witness Printer took 58.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant [2019-11-19 18:44:59,668 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,668 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.leq~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && ~fp.geq~FLOAT(x, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)))) && ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 10]: Loop Invariant [2019-11-19 18:44:59,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 18:44:59,672 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.leq~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && ~fp.geq~FLOAT(x, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 3.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 17 SDslu, 4 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 29 HoareAnnotationTreeSize, 2 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 4 NumberOfNonLiveVariables, 10 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...