./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/inv_Newton-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab 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_Newton-1.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 94c7e44bedb585ab09170efda1a99dc421396ccb ....................................................................................................................................................................................................................................................................................... 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_Newton-1.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 94c7e44bedb585ab09170efda1a99dc421396ccb .................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:36:39,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:36:39,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:36:39,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:36:39,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:36:39,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:36:39,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:36:39,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:36:39,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:36:39,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:36:39,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:36:39,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:36:39,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:36:39,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:36:39,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:36:39,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:36:39,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:36:39,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:36:39,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:36:39,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:36:39,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:36:39,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:36:39,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:36:39,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:36:39,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:36:39,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:36:39,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:36:39,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:36:39,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:36:39,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:36:39,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:36:39,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:36:39,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:36:39,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:36:39,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:36:39,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:36:39,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:36:39,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:36:39,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:36:39,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:36:39,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:36:39,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:36:39,525 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:36:39,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:36:39,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:36:39,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:36:39,532 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:36:39,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:36:39,533 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:36:39,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:36:39,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:36:39,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:36:39,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:36:39,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:36:39,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:36:39,536 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:36:39,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:36:39,536 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:36:39,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:36:39,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:36:39,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:36:39,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:36:39,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:36:39,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:36:39,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:36:39,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:36:39,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:36:39,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:36:39,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:36:39,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:36:39,540 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 -> 94c7e44bedb585ab09170efda1a99dc421396ccb [2019-11-27 23:36:39,847 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:36:39,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:36:39,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:36:39,864 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:36:39,865 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:36:39,865 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2019-11-27 23:36:39,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4dbcf8a6/53b41f182d86435c8a3904ef54aeffa5/FLAG250f8c365 [2019-11-27 23:36:40,363 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:36:40,364 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2019-11-27 23:36:40,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4dbcf8a6/53b41f182d86435c8a3904ef54aeffa5/FLAG250f8c365 [2019-11-27 23:36:40,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4dbcf8a6/53b41f182d86435c8a3904ef54aeffa5 [2019-11-27 23:36:40,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:36:40,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:36:40,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:36:40,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:36:40,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:36:40,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:36:40" (1/1) ... [2019-11-27 23:36:40,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac07712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40, skipping insertion in model container [2019-11-27 23:36:40,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:36:40" (1/1) ... [2019-11-27 23:36:40,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:36:40,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:36:41,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:36:41,071 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:36:41,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:36:41,201 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:36:41,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41 WrapperNode [2019-11-27 23:36:41,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:36:41,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:36:41,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:36:41,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:36:41,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41" (1/1) ... [2019-11-27 23:36:41,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41" (1/1) ... [2019-11-27 23:36:41,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:36:41,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:36:41,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:36:41,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:36:41,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41" (1/1) ... [2019-11-27 23:36:41,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41" (1/1) ... [2019-11-27 23:36:41,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41" (1/1) ... [2019-11-27 23:36:41,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41" (1/1) ... [2019-11-27 23:36:41,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41" (1/1) ... [2019-11-27 23:36:41,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41" (1/1) ... [2019-11-27 23:36:41,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41" (1/1) ... [2019-11-27 23:36:41,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:36:41,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:36:41,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:36:41,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:36:41,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41" (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 [2019-11-27 23:36:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:36:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:36:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:36:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:36:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:36:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:36:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:36:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:36:41,615 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:36:41,615 INFO L297 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-27 23:36:41,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:41 BoogieIcfgContainer [2019-11-27 23:36:41,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:36:41,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:36:41,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:36:41,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:36:41,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:36:40" (1/3) ... [2019-11-27 23:36:41,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fee3731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:36:41, skipping insertion in model container [2019-11-27 23:36:41,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:41" (2/3) ... [2019-11-27 23:36:41,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fee3731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:36:41, skipping insertion in model container [2019-11-27 23:36:41,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:41" (3/3) ... [2019-11-27 23:36:41,640 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2019-11-27 23:36:41,663 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:36:41,670 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:36:41,692 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:36:41,718 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:36:41,718 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:36:41,718 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:36:41,718 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:36:41,718 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:36:41,718 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:36:41,719 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:36:41,719 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:36:41,733 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-27 23:36:41,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-27 23:36:41,739 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:36:41,740 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:36:41,741 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:36:41,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:36:41,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1808844170, now seen corresponding path program 1 times [2019-11-27 23:36:41,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:36:41,758 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175530660] [2019-11-27 23:36:41,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:36:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:36:41,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:36:41,969 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175530660] [2019-11-27 23:36:41,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:36:41,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 23:36:41,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257608054] [2019-11-27 23:36:41,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:36:41,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:36:41,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:36:41,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:36:41,990 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2019-11-27 23:36:42,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:36:42,017 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-11-27 23:36:42,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:36:42,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-27 23:36:42,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:36:42,027 INFO L225 Difference]: With dead ends: 22 [2019-11-27 23:36:42,028 INFO L226 Difference]: Without dead ends: 9 [2019-11-27 23:36:42,031 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:36:42,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-27 23:36:42,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-27 23:36:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-27 23:36:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-27 23:36:42,062 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-11-27 23:36:42,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:36:42,063 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-27 23:36:42,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:36:42,063 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-27 23:36:42,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-27 23:36:42,064 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:36:42,064 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:36:42,065 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:36:42,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:36:42,065 INFO L82 PathProgramCache]: Analyzing trace with hash 291249093, now seen corresponding path program 1 times [2019-11-27 23:36:42,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:36:42,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707051463] [2019-11-27 23:36:42,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:36:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:36:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:36:42,195 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:36:42,195 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:36:42,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:36:42 BoogieIcfgContainer [2019-11-27 23:36:42,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:36:42,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:36:42,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:36:42,225 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:36:42,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:41" (3/4) ... [2019-11-27 23:36:42,230 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:36:42,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:36:42,233 INFO L168 Benchmark]: Toolchain (without parser) took 1465.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -118.9 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:36:42,234 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-27 23:36:42,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:36:42,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:36:42,237 INFO L168 Benchmark]: Boogie Preprocessor took 29.96 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. [2019-11-27 23:36:42,238 INFO L168 Benchmark]: RCFGBuilder took 342.63 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:36:42,239 INFO L168 Benchmark]: TraceAbstraction took 603.65 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:36:42,239 INFO L168 Benchmark]: Witness Printer took 5.86 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. [2019-11-27 23:36:42,244 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 434.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.96 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 342.63 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 603.65 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.86 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: 11]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryArithmeticDOUBLEoperation at line 31, overapproximation of someBinaryDOUBLEComparisonOperation at line 48, overapproximation of to_real at line 26. Possible FailurePath: [L41] double a,r; [L43] a = __VERIFIER_nondet_double() [L21] double xi, xsi, temp; [L22] signed int cond, exp; [L23] union double_int A_u, xi_u; [L24] A_u.d = A [L25] EXPR A_u.i [L25] exp = (signed int) ((A_u.i & 0x7FF0000000000000) >> 52) - 1023 [L26] xi_u.d = 1 [L27] xi_u.i = (((long long)(1023-exp)) << 52) [L28] EXPR xi_u.d [L28] xi = xi_u.d [L29] cond = 1 [L30] COND TRUE \read(cond) [L31] xsi = 2*xi-A*xi*xi [L32] temp = xsi-xi [L33] cond = ((temp > 1e-10) || (temp < -1e-10)) [L34] xi = xsi [L30] COND FALSE !(\read(cond)) [L36] return xi; [L36] return xi; [L36] return xi; [L46] r = inv(a) [L11] COND TRUE !(cond) [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 9 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 0.1.24-30f4e4a [2019-11-27 23:36:44,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:36:44,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:36:44,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:36:44,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:36:44,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:36:44,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:36:44,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:36:44,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:36:44,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:36:44,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:36:44,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:36:44,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:36:44,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:36:44,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:36:44,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:36:44,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:36:44,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:36:44,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:36:44,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:36:44,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:36:44,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:36:44,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:36:44,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:36:44,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:36:44,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:36:44,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:36:44,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:36:44,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:36:44,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:36:44,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:36:44,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:36:44,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:36:44,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:36:44,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:36:44,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:36:44,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:36:44,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:36:44,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:36:44,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:36:44,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:36:44,177 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:36:44,192 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:36:44,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:36:44,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:36:44,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:36:44,194 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:36:44,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:36:44,195 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:36:44,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:36:44,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:36:44,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:36:44,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:36:44,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:36:44,196 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:36:44,197 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:36:44,197 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:36:44,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:36:44,197 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:36:44,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:36:44,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:36:44,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:36:44,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:36:44,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:36:44,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:36:44,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:36:44,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:36:44,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:36:44,200 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:36:44,201 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:36:44,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:36:44,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:36:44,202 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 -> 94c7e44bedb585ab09170efda1a99dc421396ccb [2019-11-27 23:36:44,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:36:44,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:36:44,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:36:44,553 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:36:44,553 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:36:44,554 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2019-11-27 23:36:44,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ea79d0a/acad0aa9e88042ab83e06c19c301dc79/FLAG1f2614bbe [2019-11-27 23:36:45,065 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:36:45,066 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2019-11-27 23:36:45,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ea79d0a/acad0aa9e88042ab83e06c19c301dc79/FLAG1f2614bbe [2019-11-27 23:36:45,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ea79d0a/acad0aa9e88042ab83e06c19c301dc79 [2019-11-27 23:36:45,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:36:45,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:36:45,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:36:45,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:36:45,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:36:45,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:36:45" (1/1) ... [2019-11-27 23:36:45,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10100df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45, skipping insertion in model container [2019-11-27 23:36:45,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:36:45" (1/1) ... [2019-11-27 23:36:45,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:36:45,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:36:45,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:36:45,733 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:36:45,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:36:45,849 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:36:45,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45 WrapperNode [2019-11-27 23:36:45,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:36:45,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:36:45,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:36:45,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:36:45,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45" (1/1) ... [2019-11-27 23:36:45,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45" (1/1) ... [2019-11-27 23:36:45,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:36:45,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:36:45,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:36:45,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:36:45,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45" (1/1) ... [2019-11-27 23:36:45,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45" (1/1) ... [2019-11-27 23:36:45,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45" (1/1) ... [2019-11-27 23:36:45,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45" (1/1) ... [2019-11-27 23:36:45,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45" (1/1) ... [2019-11-27 23:36:45,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45" (1/1) ... [2019-11-27 23:36:45,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45" (1/1) ... [2019-11-27 23:36:45,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:36:45,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:36:45,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:36:45,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:36:45,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45" (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 [2019-11-27 23:36:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-27 23:36:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-27 23:36:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:36:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-11-27 23:36:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:36:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:36:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2019-11-27 23:36:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:36:48,393 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:36:48,394 INFO L297 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-27 23:36:48,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:48 BoogieIcfgContainer [2019-11-27 23:36:48,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:36:48,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:36:48,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:36:48,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:36:48,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:36:45" (1/3) ... [2019-11-27 23:36:48,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf0bb05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:36:48, skipping insertion in model container [2019-11-27 23:36:48,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:45" (2/3) ... [2019-11-27 23:36:48,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf0bb05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:36:48, skipping insertion in model container [2019-11-27 23:36:48,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:48" (3/3) ... [2019-11-27 23:36:48,425 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2019-11-27 23:36:48,454 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:36:48,463 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:36:48,478 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:36:48,504 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:36:48,505 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:36:48,505 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:36:48,505 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:36:48,506 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:36:48,506 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:36:48,506 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:36:48,507 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:36:48,527 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-27 23:36:48,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-27 23:36:48,532 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:36:48,533 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:36:48,533 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:36:48,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:36:48,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1808844170, now seen corresponding path program 1 times [2019-11-27 23:36:48,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:36:48,550 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454686971] [2019-11-27 23:36:48,550 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 [2019-11-27 23:36:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:36:48,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-27 23:36:48,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:36:48,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:36:48,639 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:36:48,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:36:48,643 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454686971] [2019-11-27 23:36:48,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:36:48,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 23:36:48,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817739347] [2019-11-27 23:36:48,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:36:48,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:36:48,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:36:48,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:36:48,660 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2019-11-27 23:36:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:36:48,673 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-11-27 23:36:48,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:36:48,674 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-27 23:36:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:36:48,680 INFO L225 Difference]: With dead ends: 12 [2019-11-27 23:36:48,680 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:36:48,683 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:36:48,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:36:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:36:48,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:36:48,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:36:48,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-27 23:36:48,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:36:48,710 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:36:48,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:36:48,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:36:48,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:36:48,914 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:36:48,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:36:48,963 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:36:48,963 INFO L246 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2019-11-27 23:36:48,963 INFO L246 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2019-11-27 23:36:48,963 INFO L242 CegarLoopResult]: At program point L11-3(line 11) the Hoare annotation is: false [2019-11-27 23:36:48,964 INFO L242 CegarLoopResult]: At program point L36(lines 19 37) the Hoare annotation is: false [2019-11-27 23:36:48,964 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:36:48,964 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:36:48,964 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:36:48,964 INFO L242 CegarLoopResult]: At program point L30-2(lines 30 35) the Hoare annotation is: false [2019-11-27 23:36:48,964 INFO L246 CegarLoopResult]: For program point L30-3(lines 30 35) no Hoare annotation was computed. [2019-11-27 23:36:48,965 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2019-11-27 23:36:48,965 INFO L242 CegarLoopResult]: At program point L49(lines 39 50) the Hoare annotation is: false [2019-11-27 23:36:48,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:36:48 BoogieIcfgContainer [2019-11-27 23:36:48,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:36:48,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:36:48,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:36:48,977 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:36:48,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:48" (3/4) ... [2019-11-27 23:36:48,981 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:36:48,993 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-27 23:36:48,993 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-27 23:36:48,993 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:36:49,044 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:36:49,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:36:49,047 INFO L168 Benchmark]: Toolchain (without parser) took 3545.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -50.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:36:49,048 INFO L168 Benchmark]: CDTParser took 0.14 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. [2019-11-27 23:36:49,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -113.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:36:49,049 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:36:49,050 INFO L168 Benchmark]: Boogie Preprocessor took 37.53 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:36:49,051 INFO L168 Benchmark]: RCFGBuilder took 2464.55 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: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2019-11-27 23:36:49,051 INFO L168 Benchmark]: TraceAbstraction took 576.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:36:49,052 INFO L168 Benchmark]: Witness Printer took 68.51 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. [2019-11-27 23:36:49,056 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 348.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -113.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.53 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2464.55 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: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 576.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * Witness Printer took 68.51 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.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: 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: 39]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 1 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...