./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c9c8a757 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/nla-digbench/freire1.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 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ........................................................................................................................................................................................................................... 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/nla-digbench/freire1.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 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-c9c8a75 [2019-11-28 09:48:42,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 09:48:42,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 09:48:42,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 09:48:42,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 09:48:42,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 09:48:42,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 09:48:42,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 09:48:42,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 09:48:42,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 09:48:42,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 09:48:42,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 09:48:42,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 09:48:42,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 09:48:42,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 09:48:42,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 09:48:42,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 09:48:42,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 09:48:42,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 09:48:42,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 09:48:42,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 09:48:42,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 09:48:42,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 09:48:42,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 09:48:42,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 09:48:42,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 09:48:42,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 09:48:42,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 09:48:42,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 09:48:42,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 09:48:42,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 09:48:42,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 09:48:42,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 09:48:42,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 09:48:42,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 09:48:42,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 09:48:42,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 09:48:42,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 09:48:42,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 09:48:42,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 09:48:42,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 09:48:42,538 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 09:48:42,552 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 09:48:42,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 09:48:42,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 09:48:42,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 09:48:42,554 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 09:48:42,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 09:48:42,554 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 09:48:42,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 09:48:42,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 09:48:42,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 09:48:42,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 09:48:42,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 09:48:42,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 09:48:42,556 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 09:48:42,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 09:48:42,557 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 09:48:42,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 09:48:42,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 09:48:42,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 09:48:42,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 09:48:42,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 09:48:42,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 09:48:42,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 09:48:42,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 09:48:42,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 09:48:42,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 09:48:42,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 09:48:42,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 09:48:42,560 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 -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-28 09:48:42,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 09:48:42,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 09:48:42,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 09:48:42,876 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 09:48:42,876 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 09:48:42,877 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-28 09:48:42,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382a1ad9e/b001830c327f4b3180bc496ac5a463f1/FLAGdd80ec35e [2019-11-28 09:48:43,392 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 09:48:43,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-28 09:48:43,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382a1ad9e/b001830c327f4b3180bc496ac5a463f1/FLAGdd80ec35e [2019-11-28 09:48:43,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382a1ad9e/b001830c327f4b3180bc496ac5a463f1 [2019-11-28 09:48:43,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 09:48:43,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 09:48:43,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 09:48:43,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 09:48:43,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 09:48:43,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:48:43" (1/1) ... [2019-11-28 09:48:43,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d553959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:43, skipping insertion in model container [2019-11-28 09:48:43,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:48:43" (1/1) ... [2019-11-28 09:48:43,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 09:48:43,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 09:48:44,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 09:48:44,013 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 09:48:44,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 09:48:44,049 INFO L208 MainTranslator]: Completed translation [2019-11-28 09:48:44,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44 WrapperNode [2019-11-28 09:48:44,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 09:48:44,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 09:48:44,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 09:48:44,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 09:48:44,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 09:48:44,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 09:48:44,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 09:48:44,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 09:48:44,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 09:48:44,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 09:48:44,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 09:48:44,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 09:48:44,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (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 [2019-11-28 09:48:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 09:48:44,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 09:48:44,415 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 09:48:44,415 INFO L297 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 09:48:44,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:44 BoogieIcfgContainer [2019-11-28 09:48:44,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 09:48:44,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 09:48:44,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 09:48:44,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 09:48:44,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 09:48:43" (1/3) ... [2019-11-28 09:48:44,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de07f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 09:48:44, skipping insertion in model container [2019-11-28 09:48:44,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (2/3) ... [2019-11-28 09:48:44,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de07f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 09:48:44, skipping insertion in model container [2019-11-28 09:48:44,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:44" (3/3) ... [2019-11-28 09:48:44,445 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-28 09:48:44,475 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 09:48:44,487 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 09:48:44,519 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 09:48:44,546 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 09:48:44,547 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 09:48:44,547 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 09:48:44,547 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 09:48:44,547 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 09:48:44,548 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 09:48:44,548 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 09:48:44,548 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 09:48:44,560 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-28 09:48:44,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 09:48:44,566 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 09:48:44,567 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 09:48:44,567 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 09:48:44,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 09:48:44,573 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-28 09:48:44,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 09:48:44,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319701497] [2019-11-28 09:48:44,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 09:48:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 09:48:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 09:48:44,673 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 09:48:44,674 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 09:48:44,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 09:48:44 BoogieIcfgContainer [2019-11-28 09:48:44,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 09:48:44,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 09:48:44,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 09:48:44,690 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 09:48:44,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:44" (3/4) ... [2019-11-28 09:48:44,694 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 09:48:44,695 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 09:48:44,698 INFO L168 Benchmark]: Toolchain (without parser) took 962.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -154.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 09:48:44,699 INFO L168 Benchmark]: CDTParser took 0.30 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. [2019-11-28 09:48:44,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.35 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 09:48:44,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 09:48:44,702 INFO L168 Benchmark]: Boogie Preprocessor took 37.84 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 09:48:44,703 INFO L168 Benchmark]: RCFGBuilder took 235.82 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-28 09:48:44,704 INFO L168 Benchmark]: TraceAbstraction took 271.45 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: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-11-28 09:48:44,705 INFO L168 Benchmark]: Witness Printer took 5.19 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. [2019-11-28 09:48:44,710 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 316.35 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.84 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 235.82 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 271.45 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: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.19 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: 14]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L20] int r; [L21] double a, x; [L22] a = __VERIFIER_nondet_double() [L23] x = a / 2.0 [L24] r = 0 [L26] COND TRUE 1 [L12] COND TRUE !(cond) [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 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=14occurred 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-c9c8a75 [2019-11-28 09:48:46,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 09:48:46,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 09:48:46,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 09:48:46,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 09:48:46,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 09:48:46,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 09:48:46,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 09:48:46,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 09:48:46,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 09:48:46,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 09:48:46,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 09:48:46,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 09:48:46,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 09:48:46,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 09:48:46,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 09:48:46,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 09:48:46,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 09:48:46,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 09:48:46,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 09:48:46,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 09:48:46,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 09:48:46,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 09:48:46,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 09:48:46,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 09:48:46,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 09:48:46,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 09:48:46,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 09:48:46,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 09:48:46,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 09:48:46,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 09:48:46,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 09:48:46,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 09:48:46,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 09:48:46,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 09:48:46,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 09:48:46,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 09:48:46,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 09:48:46,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 09:48:46,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 09:48:46,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 09:48:46,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 09:48:46,711 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 09:48:46,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 09:48:46,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 09:48:46,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 09:48:46,713 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 09:48:46,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 09:48:46,713 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 09:48:46,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 09:48:46,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 09:48:46,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 09:48:46,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 09:48:46,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 09:48:46,715 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 09:48:46,715 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 09:48:46,716 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 09:48:46,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 09:48:46,716 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 09:48:46,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 09:48:46,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 09:48:46,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 09:48:46,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 09:48:46,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 09:48:46,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 09:48:46,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 09:48:46,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 09:48:46,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 09:48:46,719 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 09:48:46,719 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 09:48:46,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 09:48:46,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 09:48:46,720 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 -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-28 09:48:47,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 09:48:47,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 09:48:47,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 09:48:47,050 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 09:48:47,050 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 09:48:47,052 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-28 09:48:47,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3baee8d52/7bedff1bc0554b26bcc0d51d1c73ab22/FLAG18c8b6c06 [2019-11-28 09:48:47,571 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 09:48:47,572 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-28 09:48:47,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3baee8d52/7bedff1bc0554b26bcc0d51d1c73ab22/FLAG18c8b6c06 [2019-11-28 09:48:47,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3baee8d52/7bedff1bc0554b26bcc0d51d1c73ab22 [2019-11-28 09:48:47,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 09:48:47,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 09:48:47,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 09:48:47,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 09:48:47,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 09:48:47,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:48:47" (1/1) ... [2019-11-28 09:48:47,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15593e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:47, skipping insertion in model container [2019-11-28 09:48:47,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:48:47" (1/1) ... [2019-11-28 09:48:47,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 09:48:47,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 09:48:48,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 09:48:48,166 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 09:48:48,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 09:48:48,201 INFO L208 MainTranslator]: Completed translation [2019-11-28 09:48:48,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48 WrapperNode [2019-11-28 09:48:48,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 09:48:48,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 09:48:48,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 09:48:48,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 09:48:48,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48" (1/1) ... [2019-11-28 09:48:48,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48" (1/1) ... [2019-11-28 09:48:48,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 09:48:48,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 09:48:48,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 09:48:48,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 09:48:48,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48" (1/1) ... [2019-11-28 09:48:48,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48" (1/1) ... [2019-11-28 09:48:48,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48" (1/1) ... [2019-11-28 09:48:48,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48" (1/1) ... [2019-11-28 09:48:48,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48" (1/1) ... [2019-11-28 09:48:48,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48" (1/1) ... [2019-11-28 09:48:48,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48" (1/1) ... [2019-11-28 09:48:48,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 09:48:48,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 09:48:48,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 09:48:48,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 09:48:48,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 09:48:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 09:48:48,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 09:48:53,042 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 09:48:53,042 INFO L297 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 09:48:53,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:53 BoogieIcfgContainer [2019-11-28 09:48:53,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 09:48:53,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 09:48:53,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 09:48:53,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 09:48:53,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 09:48:47" (1/3) ... [2019-11-28 09:48:53,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720d3c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 09:48:53, skipping insertion in model container [2019-11-28 09:48:53,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48" (2/3) ... [2019-11-28 09:48:53,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720d3c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 09:48:53, skipping insertion in model container [2019-11-28 09:48:53,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:53" (3/3) ... [2019-11-28 09:48:53,052 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-28 09:48:53,061 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 09:48:53,068 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 09:48:53,081 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 09:48:53,105 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 09:48:53,106 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 09:48:53,106 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 09:48:53,106 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 09:48:53,107 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 09:48:53,107 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 09:48:53,107 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 09:48:53,108 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 09:48:53,123 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-28 09:48:53,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 09:48:53,129 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 09:48:53,130 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 09:48:53,130 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 09:48:53,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 09:48:53,137 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-28 09:48:53,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 09:48:53,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310285433] [2019-11-28 09:48:53,147 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 [2019-11-28 09:48:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 09:48:56,004 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 09:48:56,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 09:48:58,615 WARN L192 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-28 09:49:13,505 WARN L192 SmtUtils]: Spent 6.25 s on a formula simplification that was a NOOP. DAG size: 25 [2019-11-28 09:49:17,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 09:49:17,176 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 09:49:21,318 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-28 09:49:23,371 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-28 09:49:25,437 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (_ bv0 32))) is different from true [2019-11-28 09:49:25,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 09:49:25,439 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310285433] [2019-11-28 09:49:25,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 09:49:25,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-28 09:49:25,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19983936] [2019-11-28 09:49:25,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 09:49:25,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 09:49:25,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 09:49:25,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=21, Unknown=3, NotChecked=18, Total=56 [2019-11-28 09:49:25,457 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-28 09:49:34,023 WARN L192 SmtUtils]: Spent 4.11 s on a formula simplification that was a NOOP. DAG size: 20 [2019-11-28 09:49:40,357 WARN L860 $PredicateComparison]: unable to prove that (and (= (_ bv0 32) c_ULTIMATE.start_main_~r~0) (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-28 09:49:41,774 WARN L192 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 27 DAG size of output: 5 [2019-11-28 09:49:55,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 09:49:55,084 INFO L93 Difference]: Finished difference Result 32 states and 47 transitions. [2019-11-28 09:49:55,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 09:49:55,086 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-28 09:49:55,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 09:49:55,094 INFO L225 Difference]: With dead ends: 32 [2019-11-28 09:49:55,094 INFO L226 Difference]: Without dead ends: 14 [2019-11-28 09:49:55,097 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 35.0s TimeCoverageRelationStatistics Valid=23, Invalid=39, Unknown=6, NotChecked=42, Total=110 [2019-11-28 09:49:55,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-28 09:49:55,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 9. [2019-11-28 09:49:55,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 09:49:55,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-28 09:49:55,133 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-28 09:49:55,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 09:49:55,133 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-28 09:49:55,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 09:49:55,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-28 09:49:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 09:49:55,135 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 09:49:55,135 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 09:49:55,348 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 09:49:55,348 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 09:49:55,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 09:49:55,349 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-28 09:49:55,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 09:49:55,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595888479] [2019-11-28 09:49:55,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 09:49:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 09:49:55,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 09:49:55,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 09:49:57,767 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from false [2019-11-28 09:49:59,853 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from true [2019-11-28 09:49:59,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 09:50:01,925 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-28 09:50:03,982 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-28 09:50:03,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 09:50:10,172 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0)))))) is different from false [2019-11-28 09:50:10,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 09:50:10,179 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 09:50:12,261 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from false [2019-11-28 09:50:14,320 WARN L860 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from true [2019-11-28 09:50:14,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 09:50:14,521 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595888479] [2019-11-28 09:50:14,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 09:50:14,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-28 09:50:14,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240492985] [2019-11-28 09:50:14,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 09:50:14,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 09:50:14,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 09:50:14,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-28 09:50:14,524 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-28 09:50:18,777 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0)) (or .cse0 .cse1))) is different from false [2019-11-28 09:50:20,838 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0)) (or .cse0 .cse1))) is different from true [2019-11-28 09:50:22,902 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) (not (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) is different from false [2019-11-28 09:50:22,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 09:50:22,906 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-28 09:50:22,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 09:50:22,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-28 09:50:22,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 09:50:22,907 INFO L225 Difference]: With dead ends: 9 [2019-11-28 09:50:22,907 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 09:50:22,908 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=15, Invalid=5, Unknown=10, NotChecked=42, Total=72 [2019-11-28 09:50:22,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 09:50:22,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 09:50:22,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 09:50:22,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 09:50:22,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-28 09:50:22,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 09:50:22,909 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 09:50:22,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 09:50:22,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 09:50:22,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 09:50:23,111 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 09:50:23,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 09:50:51,351 WARN L192 SmtUtils]: Spent 28.20 s on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2019-11-28 09:51:39,402 WARN L192 SmtUtils]: Spent 48.05 s on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-28 09:51:39,410 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 09:51:39,410 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-28 09:51:39,410 INFO L246 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-28 09:51:39,411 INFO L246 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-28 09:51:39,411 INFO L242 CegarLoopResult]: At program point L36(lines 19 37) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-28 09:51:39,411 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 09:51:39,411 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 09:51:39,411 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 09:51:39,412 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-28 09:51:39,412 INFO L242 CegarLoopResult]: At program point L26-2(lines 26 33) the Hoare annotation is: (or (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (_ bv0 32) ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (fp.div currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0)))) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-28 09:51:39,412 INFO L246 CegarLoopResult]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-28 09:51:39,412 INFO L246 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-28 09:51:39,413 INFO L242 CegarLoopResult]: At program point L12-2(lines 29 30) the Hoare annotation is: (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) [2019-11-28 09:51:39,413 INFO L246 CegarLoopResult]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-28 09:51:39,413 INFO L242 CegarLoopResult]: At program point L12-5(lines 11 17) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-28 09:51:39,424 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 09:51:39,427 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,428 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,428 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,428 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,429 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,429 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,429 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,432 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 09:51:39,433 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,433 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,433 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,435 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,437 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 09:51:39,437 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 09:51:39,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,439 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,439 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,439 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 09:51:39,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 09:51:39,443 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,443 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,444 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,444 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,444 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 09:51:39 BoogieIcfgContainer [2019-11-28 09:51:39,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 09:51:39,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 09:51:39,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 09:51:39,450 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 09:51:39,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:53" (3/4) ... [2019-11-28 09:51:39,455 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 09:51:39,466 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 09:51:39,466 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 09:51:39,467 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 09:51:39,517 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 09:51:39,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 09:51:39,519 INFO L168 Benchmark]: Toolchain (without parser) took 171571.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -48.1 MB). Peak memory consumption was 68.3 MB. Max. memory is 11.5 GB. [2019-11-28 09:51:39,520 INFO L168 Benchmark]: CDTParser took 0.31 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. [2019-11-28 09:51:39,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.21 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 09:51:39,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-28 09:51:39,522 INFO L168 Benchmark]: Boogie Preprocessor took 28.39 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 09:51:39,523 INFO L168 Benchmark]: RCFGBuilder took 4721.44 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-28 09:51:39,524 INFO L168 Benchmark]: TraceAbstraction took 166405.13 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: 77.0 MB). Peak memory consumption was 77.0 MB. Max. memory is 11.5 GB. [2019-11-28 09:51:39,524 INFO L168 Benchmark]: Witness Printer took 67.79 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 09:51:39,529 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 253.21 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 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 90.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.39 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 4721.44 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 166405.13 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: 77.0 MB). Peak memory consumption was 77.0 MB. Max. memory is 11.5 GB. * Witness Printer took 67.79 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: 6.7 MB). Peak memory consumption was 6.7 MB. 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 ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant [2019-11-28 09:51:39,546 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 09:51:39,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,549 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 09:51:39,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: !(cond == 0bv32) && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x))) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - InvariantResult [Line: 26]: Loop Invariant [2019-11-28 09:51:39,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 09:51:39,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 09:51:39,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 09:51:39,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 09:51:39,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 09:51:39,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: !(cond == 0bv32) || (((0bv32 == r && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, a, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))) && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 90.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 38.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 76.2s, HoareTripleCheckerStatistics: 15 SDtfs, 12 SDslu, 20 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 17.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 55.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 83 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 11 FormulaSimplificationTreeSizeReductionInter, 76.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 48.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 3 QuantifiedInterpolants, 2103 SizeOfPredicates, 18 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...