./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1121b.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 73dc70fc086318c728ead326eb8ef835fee9f9a2 .............................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1121b.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 73dc70fc086318c728ead326eb8ef835fee9f9a2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 16:55:04,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:55:04,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:55:04,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:55:04,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:55:04,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:55:04,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:55:04,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:55:04,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:55:04,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:55:04,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:55:04,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:55:04,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:55:04,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:55:04,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:55:04,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:55:04,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:55:04,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:55:04,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:55:04,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:55:04,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:55:04,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:55:04,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:55:04,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:55:04,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:55:04,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:55:04,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:55:04,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:55:04,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:55:04,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:55:04,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:55:04,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:55:04,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:55:04,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:55:04,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:55:04,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:55:04,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:55:04,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:55:04,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:55:04,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:55:04,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:55:04,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:55:04,674 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:55:04,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:55:04,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:55:04,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:55:04,679 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:55:04,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:55:04,679 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:55:04,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:55:04,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:55:04,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:55:04,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:55:04,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:55:04,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:55:04,682 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:55:04,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:55:04,682 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:55:04,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:55:04,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:55:04,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:55:04,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:55:04,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:55:04,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:55:04,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:55:04,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:55:04,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:55:04,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:55:04,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:55:04,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:55:04,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:55:04,686 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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-11-28 16:55:05,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:55:05,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:55:05,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:55:05,046 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:55:05,047 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:55:05,048 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-28 16:55:05,116 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e7e4bce7/49db370761cb453d88053f30586e13b0/FLAGe815bc5f5 [2019-11-28 16:55:05,588 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:55:05,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-28 16:55:05,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e7e4bce7/49db370761cb453d88053f30586e13b0/FLAGe815bc5f5 [2019-11-28 16:55:05,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e7e4bce7/49db370761cb453d88053f30586e13b0 [2019-11-28 16:55:05,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:55:05,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:55:05,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:55:05,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:55:05,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:55:05,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:55:05" (1/1) ... [2019-11-28 16:55:05,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a9841a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:05, skipping insertion in model container [2019-11-28 16:55:05,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:55:05" (1/1) ... [2019-11-28 16:55:06,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:55:06,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:55:06,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:55:06,289 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:55:06,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:55:06,414 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:55:06,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06 WrapperNode [2019-11-28 16:55:06,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:55:06,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:55:06,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:55:06,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:55:06,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06" (1/1) ... [2019-11-28 16:55:06,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06" (1/1) ... [2019-11-28 16:55:06,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:55:06,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:55:06,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:55:06,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:55:06,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06" (1/1) ... [2019-11-28 16:55:06,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06" (1/1) ... [2019-11-28 16:55:06,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06" (1/1) ... [2019-11-28 16:55:06,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06" (1/1) ... [2019-11-28 16:55:06,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06" (1/1) ... [2019-11-28 16:55:06,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06" (1/1) ... [2019-11-28 16:55:06,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06" (1/1) ... [2019-11-28 16:55:06,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:55:06,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:55:06,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:55:06,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:55:06,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06" (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 16:55:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:55:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 16:55:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-28 16:55:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-28 16:55:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:55:06,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:55:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 16:55:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-28 16:55:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:55:07,029 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:55:07,030 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-28 16:55:07,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:55:07 BoogieIcfgContainer [2019-11-28 16:55:07,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:55:07,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:55:07,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:55:07,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:55:07,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:55:05" (1/3) ... [2019-11-28 16:55:07,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d81994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:55:07, skipping insertion in model container [2019-11-28 16:55:07,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:06" (2/3) ... [2019-11-28 16:55:07,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d81994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:55:07, skipping insertion in model container [2019-11-28 16:55:07,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:55:07" (3/3) ... [2019-11-28 16:55:07,040 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-11-28 16:55:07,051 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:55:07,059 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:55:07,069 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:55:07,091 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:55:07,092 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:55:07,092 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:55:07,092 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:55:07,092 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:55:07,092 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:55:07,093 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:55:07,093 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:55:07,107 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-28 16:55:07,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 16:55:07,114 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:55:07,115 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:55:07,116 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:55:07,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:55:07,121 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-28 16:55:07,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:55:07,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614854796] [2019-11-28 16:55:07,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:55:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:55:07,262 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 16:55:07,263 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614854796] [2019-11-28 16:55:07,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:55:07,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 16:55:07,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11690264] [2019-11-28 16:55:07,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:55:07,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:55:07,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:55:07,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:55:07,283 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-28 16:55:07,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:55:07,305 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-28 16:55:07,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:55:07,306 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-28 16:55:07,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:55:07,317 INFO L225 Difference]: With dead ends: 82 [2019-11-28 16:55:07,317 INFO L226 Difference]: Without dead ends: 39 [2019-11-28 16:55:07,321 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:55:07,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-28 16:55:07,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-28 16:55:07,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 16:55:07,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-28 16:55:07,353 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-28 16:55:07,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:55:07,353 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-28 16:55:07,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:55:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-28 16:55:07,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:55:07,354 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:55:07,354 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:55:07,354 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:55:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:55:07,355 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-28 16:55:07,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:55:07,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854914874] [2019-11-28 16:55:07,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:55:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:55:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:55:07,488 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:55:07,488 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:55:07,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:55:07 BoogieIcfgContainer [2019-11-28 16:55:07,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:55:07,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:55:07,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:55:07,528 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:55:07,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:55:07" (3/4) ... [2019-11-28 16:55:07,531 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 16:55:07,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:55:07,534 INFO L168 Benchmark]: Toolchain (without parser) took 1556.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -117.2 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:55:07,535 INFO L168 Benchmark]: CDTParser took 0.75 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 16:55:07,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:55:07,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.35 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 16:55:07,537 INFO L168 Benchmark]: Boogie Preprocessor took 37.50 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 16:55:07,538 INFO L168 Benchmark]: RCFGBuilder took 517.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:55:07,539 INFO L168 Benchmark]: TraceAbstraction took 494.40 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-28 16:55:07,541 INFO L168 Benchmark]: Witness Printer took 4.25 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 16:55:07,550 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 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 433.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.35 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. * Boogie Preprocessor took 37.50 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 517.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 494.40 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.25 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: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = -0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={3:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L118] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L121] COND TRUE !isnan_float(res) [L122] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-11-28 16:55:09,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:55:09,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:55:09,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:55:09,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:55:09,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:55:09,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:55:09,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:55:09,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:55:09,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:55:09,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:55:09,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:55:09,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:55:09,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:55:09,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:55:09,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:55:09,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:55:09,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:55:09,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:55:09,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:55:09,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:55:09,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:55:09,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:55:09,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:55:09,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:55:09,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:55:09,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:55:09,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:55:09,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:55:09,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:55:09,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:55:09,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:55:09,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:55:09,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:55:09,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:55:09,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:55:09,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:55:09,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:55:09,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:55:09,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:55:09,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:55:09,561 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:55:09,578 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:55:09,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:55:09,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:55:09,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:55:09,580 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:55:09,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:55:09,581 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:55:09,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:55:09,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:55:09,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:55:09,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:55:09,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:55:09,582 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:55:09,583 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:55:09,583 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:55:09,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:55:09,583 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:55:09,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:55:09,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:55:09,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:55:09,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:55:09,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:55:09,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:55:09,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:55:09,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:55:09,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:55:09,586 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:55:09,587 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:55:09,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:55:09,587 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:55:09,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:55:09,588 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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-11-28 16:55:09,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:55:09,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:55:09,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:55:09,956 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:55:09,957 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:55:09,958 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-28 16:55:10,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45aa41f17/550f06d98a094119a71cf09329300407/FLAGa69f677ca [2019-11-28 16:55:10,508 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:55:10,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-28 16:55:10,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45aa41f17/550f06d98a094119a71cf09329300407/FLAGa69f677ca [2019-11-28 16:55:10,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45aa41f17/550f06d98a094119a71cf09329300407 [2019-11-28 16:55:10,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:55:10,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:55:10,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:55:10,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:55:10,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:55:10,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:55:10" (1/1) ... [2019-11-28 16:55:10,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484d7b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:10, skipping insertion in model container [2019-11-28 16:55:10,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:55:10" (1/1) ... [2019-11-28 16:55:10,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:55:10,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:55:11,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:55:11,149 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:55:11,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:55:11,299 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:55:11,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11 WrapperNode [2019-11-28 16:55:11,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:55:11,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:55:11,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:55:11,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:55:11,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11" (1/1) ... [2019-11-28 16:55:11,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11" (1/1) ... [2019-11-28 16:55:11,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:55:11,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:55:11,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:55:11,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:55:11,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11" (1/1) ... [2019-11-28 16:55:11,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11" (1/1) ... [2019-11-28 16:55:11,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11" (1/1) ... [2019-11-28 16:55:11,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11" (1/1) ... [2019-11-28 16:55:11,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11" (1/1) ... [2019-11-28 16:55:11,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11" (1/1) ... [2019-11-28 16:55:11,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11" (1/1) ... [2019-11-28 16:55:11,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:55:11,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:55:11,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:55:11,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:55:11,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11" (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 16:55:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-28 16:55:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:55:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-28 16:55:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 16:55:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:55:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:55:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-28 16:55:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 16:55:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:55:12,879 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:55:12,880 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-28 16:55:12,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:55:12 BoogieIcfgContainer [2019-11-28 16:55:12,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:55:12,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:55:12,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:55:12,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:55:12,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:55:10" (1/3) ... [2019-11-28 16:55:12,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bca0eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:55:12, skipping insertion in model container [2019-11-28 16:55:12,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:11" (2/3) ... [2019-11-28 16:55:12,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bca0eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:55:12, skipping insertion in model container [2019-11-28 16:55:12,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:55:12" (3/3) ... [2019-11-28 16:55:12,890 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-11-28 16:55:12,899 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:55:12,907 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:55:12,920 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:55:12,946 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:55:12,946 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:55:12,946 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:55:12,946 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:55:12,947 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:55:12,947 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:55:12,947 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:55:12,947 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:55:12,961 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-28 16:55:12,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 16:55:12,968 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:55:12,969 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:55:12,970 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:55:12,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:55:12,975 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-28 16:55:12,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:55:12,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187942017] [2019-11-28 16:55:12,986 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 16:55:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:55:13,360 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-28 16:55:13,365 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:55:13,376 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 16:55:13,377 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:55:13,380 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 16:55:13,382 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187942017] [2019-11-28 16:55:13,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:55:13,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 16:55:13,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110766542] [2019-11-28 16:55:13,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:55:13,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:55:13,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:55:13,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:55:13,403 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-28 16:55:13,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:55:13,424 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-28 16:55:13,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:55:13,426 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-28 16:55:13,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:55:13,436 INFO L225 Difference]: With dead ends: 82 [2019-11-28 16:55:13,436 INFO L226 Difference]: Without dead ends: 39 [2019-11-28 16:55:13,440 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:55:13,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-28 16:55:13,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-28 16:55:13,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 16:55:13,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-28 16:55:13,489 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-28 16:55:13,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:55:13,489 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-28 16:55:13,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:55:13,490 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-28 16:55:13,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:55:13,490 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:55:13,491 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:55:13,696 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:55:13,696 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:55:13,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:55:13,697 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-28 16:55:13,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:55:13,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461051814] [2019-11-28 16:55:13,698 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 16:55:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:55:14,009 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 16:55:14,011 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:55:15,720 WARN L192 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-11-28 16:55:15,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 16:55:16,935 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 16:55:16,936 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:55:21,059 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-28 16:55:21,310 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 16:55:21,310 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461051814] [2019-11-28 16:55:21,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:55:21,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-28 16:55:21,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304068012] [2019-11-28 16:55:21,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-28 16:55:21,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:55:21,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-28 16:55:21,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2019-11-28 16:55:21,315 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2019-11-28 16:55:26,668 WARN L192 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2019-11-28 16:55:28,201 WARN L192 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2019-11-28 16:55:29,502 WARN L192 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2019-11-28 16:55:29,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:55:29,722 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2019-11-28 16:55:29,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 16:55:29,723 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2019-11-28 16:55:29,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:55:29,725 INFO L225 Difference]: With dead ends: 44 [2019-11-28 16:55:29,725 INFO L226 Difference]: Without dead ends: 39 [2019-11-28 16:55:29,726 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=51, Invalid=108, Unknown=1, NotChecked=22, Total=182 [2019-11-28 16:55:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-28 16:55:29,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-28 16:55:29,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 16:55:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-28 16:55:29,734 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-11-28 16:55:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:55:29,734 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-28 16:55:29,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-28 16:55:29,735 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-28 16:55:29,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 16:55:29,736 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:55:29,736 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:55:29,946 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 16:55:29,947 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:55:29,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:55:29,948 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-11-28 16:55:29,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:55:29,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019309970] [2019-11-28 16:55:29,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-28 16:55:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:55:30,051 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 16:55:30,054 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:55:30,104 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 16:55:30,105 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:55:30,169 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 16:55:30,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019309970] [2019-11-28 16:55:30,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:55:30,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-28 16:55:30,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018205133] [2019-11-28 16:55:30,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 16:55:30,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:55:30,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 16:55:30,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:55:30,172 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 8 states. [2019-11-28 16:55:30,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:55:30,240 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-11-28 16:55:30,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 16:55:30,241 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-11-28 16:55:30,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:55:30,241 INFO L225 Difference]: With dead ends: 39 [2019-11-28 16:55:30,242 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 16:55:30,243 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-28 16:55:30,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 16:55:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 16:55:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 16:55:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 16:55:30,245 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-28 16:55:30,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:55:30,246 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 16:55:30,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 16:55:30,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 16:55:30,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 16:55:30,456 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 16:55:30,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 16:55:30,565 INFO L249 CegarLoopResult]: At program point L126(lines 110 127) the Hoare annotation is: true [2019-11-28 16:55:30,566 INFO L246 CegarLoopResult]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-11-28 16:55:30,566 INFO L246 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-11-28 16:55:30,566 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 16:55:30,566 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 16:55:30,566 INFO L246 CegarLoopResult]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-11-28 16:55:30,567 INFO L246 CegarLoopResult]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-11-28 16:55:30,567 INFO L242 CegarLoopResult]: At program point L20-2(lines 20 24) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-11-28 16:55:30,567 INFO L246 CegarLoopResult]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-11-28 16:55:30,567 INFO L246 CegarLoopResult]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-11-28 16:55:30,568 INFO L242 CegarLoopResult]: At program point L104(lines 17 105) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-11-28 16:55:30,568 INFO L246 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-28 16:55:30,568 INFO L246 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-11-28 16:55:30,568 INFO L246 CegarLoopResult]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-11-28 16:55:30,568 INFO L242 CegarLoopResult]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-11-28 16:55:30,568 INFO L246 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-11-28 16:55:30,569 INFO L242 CegarLoopResult]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-11-28 16:55:30,569 INFO L246 CegarLoopResult]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-28 16:55:30,569 INFO L242 CegarLoopResult]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-28 16:55:30,569 INFO L246 CegarLoopResult]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-11-28 16:55:30,569 INFO L246 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2019-11-28 16:55:30,569 INFO L246 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-28 16:55:30,570 INFO L246 CegarLoopResult]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-11-28 16:55:30,570 INFO L246 CegarLoopResult]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-11-28 16:55:30,571 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 16:55:30,571 INFO L246 CegarLoopResult]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-11-28 16:55:30,571 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-11-28 16:55:30,571 INFO L242 CegarLoopResult]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-11-28 16:55:30,572 INFO L246 CegarLoopResult]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-11-28 16:55:30,572 INFO L246 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-28 16:55:30,572 INFO L242 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-11-28 16:55:30,572 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 16:55:30,573 INFO L246 CegarLoopResult]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-11-28 16:55:30,573 INFO L246 CegarLoopResult]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-11-28 16:55:30,573 INFO L246 CegarLoopResult]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-11-28 16:55:30,573 INFO L246 CegarLoopResult]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-11-28 16:55:30,574 INFO L242 CegarLoopResult]: At program point L108(line 108) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-11-28 16:55:30,574 INFO L246 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-28 16:55:30,574 INFO L246 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-28 16:55:30,575 INFO L242 CegarLoopResult]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-11-28 16:55:30,575 INFO L246 CegarLoopResult]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-11-28 16:55:30,575 INFO L246 CegarLoopResult]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-11-28 16:55:30,592 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:55:30,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:55:30,600 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:55:30,605 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:55:30,606 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:55:30,607 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:55:30,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:55:30 BoogieIcfgContainer [2019-11-28 16:55:30,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:55:30,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:55:30,612 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:55:30,612 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:55:30,613 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:55:12" (3/4) ... [2019-11-28 16:55:30,617 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 16:55:30,635 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-28 16:55:30,636 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 16:55:30,636 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 16:55:30,686 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:55:30,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:55:30,688 INFO L168 Benchmark]: Toolchain (without parser) took 19806.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 959.0 MB in the beginning and 966.8 MB in the end (delta: -7.7 MB). Peak memory consumption was 118.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:55:30,689 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:55:30,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:55:30,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.28 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 16:55:30,691 INFO L168 Benchmark]: Boogie Preprocessor took 44.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:55:30,692 INFO L168 Benchmark]: RCFGBuilder took 1484.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:55:30,692 INFO L168 Benchmark]: TraceAbstraction took 17728.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.4 MB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:55:30,693 INFO L168 Benchmark]: Witness Printer took 74.91 ms. Allocated memory is still 1.2 GB. Free memory was 973.4 MB in the beginning and 966.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:55:30,697 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 416.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.28 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. * Boogie Preprocessor took 44.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1484.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17728.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.4 MB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. * Witness Printer took 74.91 ms. Allocated memory is still 1.2 GB. Free memory was 973.4 MB in the beginning and 966.8 MB 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 ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2019-11-28 16:55:30,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,708 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:55:30,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((1bv32 == \result && !~fp.eq~FLOAT(\result, \result)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2019-11-28 16:55:30,709 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:55:30,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 17]: Loop Invariant [2019-11-28 16:55:30,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:55:30,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:55:30,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (!~fp.eq~FLOAT(\result, \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 17.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 111 SDtfs, 111 SDslu, 197 SDs, 0 SdLazy, 38 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 14.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 42 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 11 QuantifiedInterpolants, 4137 SizeOfPredicates, 16 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...