./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0921.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3309a0b9ddf6a439ec38f457e14947ace4c70ec ........................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3309a0b9ddf6a439ec38f457e14947ace4c70ec ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:31:31,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:31:31,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:31:31,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:31:31,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:31:31,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:31:31,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:31:31,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:31:31,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:31:31,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:31:31,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:31:31,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:31:31,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:31:31,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:31:31,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:31:31,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:31:31,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:31:31,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:31:31,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:31:31,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:31:31,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:31:31,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:31:31,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:31:31,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:31:31,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:31:31,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:31:31,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:31:31,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:31:31,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:31:31,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:31:31,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:31:31,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:31:31,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:31:31,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:31:31,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:31:31,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:31:31,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:31:31,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:31:31,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:31:31,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:31:31,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:31:31,313 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:31:31,356 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:31:31,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:31:31,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:31:31,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:31:31,359 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:31:31,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:31:31,360 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:31:31,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:31:31,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:31:31,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:31:31,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:31:31,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:31:31,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:31:31,363 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:31:31,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:31:31,364 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:31:31,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:31:31,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:31:31,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:31:31,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:31:31,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:31:31,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:31:31,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:31:31,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:31:31,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:31:31,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:31:31,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:31:31,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:31:31,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:31:31,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3309a0b9ddf6a439ec38f457e14947ace4c70ec [2020-10-20 00:31:31,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:31:31,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:31:31,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:31:31,636 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:31:31,637 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:31:31,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2020-10-20 00:31:31,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c42e974/c32ee3c624714a16885b8f0b43461d30/FLAG85dd8e421 [2020-10-20 00:31:32,164 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:31:32,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2020-10-20 00:31:32,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c42e974/c32ee3c624714a16885b8f0b43461d30/FLAG85dd8e421 [2020-10-20 00:31:32,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c42e974/c32ee3c624714a16885b8f0b43461d30 [2020-10-20 00:31:32,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:31:32,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:31:32,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:31:32,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:31:32,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:31:32,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:31:32" (1/1) ... [2020-10-20 00:31:32,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7391eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:32, skipping insertion in model container [2020-10-20 00:31:32,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:31:32" (1/1) ... [2020-10-20 00:31:32,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:31:32,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:31:32,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:31:32,983 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:31:33,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:31:33,042 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:31:33,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33 WrapperNode [2020-10-20 00:31:33,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:31:33,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:31:33,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:31:33,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:31:33,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33" (1/1) ... [2020-10-20 00:31:33,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33" (1/1) ... [2020-10-20 00:31:33,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:31:33,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:31:33,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:31:33,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:31:33,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33" (1/1) ... [2020-10-20 00:31:33,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33" (1/1) ... [2020-10-20 00:31:33,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33" (1/1) ... [2020-10-20 00:31:33,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33" (1/1) ... [2020-10-20 00:31:33,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33" (1/1) ... [2020-10-20 00:31:33,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33" (1/1) ... [2020-10-20 00:31:33,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33" (1/1) ... [2020-10-20 00:31:33,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:31:33,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:31:33,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:31:33,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:31:33,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:31:33,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:31:33,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:31:33,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:31:33,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:31:33,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:31:33,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:31:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:31:33,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:31:33,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:31:33,624 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:31:33,626 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-20 00:31:33,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:31:33 BoogieIcfgContainer [2020-10-20 00:31:33,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:31:33,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:31:33,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:31:33,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:31:33,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:31:32" (1/3) ... [2020-10-20 00:31:33,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e496ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:31:33, skipping insertion in model container [2020-10-20 00:31:33,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:33" (2/3) ... [2020-10-20 00:31:33,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e496ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:31:33, skipping insertion in model container [2020-10-20 00:31:33,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:31:33" (3/3) ... [2020-10-20 00:31:33,651 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2020-10-20 00:31:33,672 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:31:33,681 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:31:33,693 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:31:33,717 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:31:33,718 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:31:33,718 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:31:33,718 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:31:33,718 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:31:33,719 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:31:33,719 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:31:33,719 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:31:33,734 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-20 00:31:33,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:31:33,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:31:33,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:31:33,742 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:31:33,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:31:33,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2020-10-20 00:31:33,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:31:33,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068032488] [2020-10-20 00:31:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:31:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:31:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:31:33,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068032488] [2020-10-20 00:31:33,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:31:33,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:31:33,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886782175] [2020-10-20 00:31:33,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:31:33,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:31:33,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:31:33,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:31:33,947 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-10-20 00:31:33,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:31:33,969 INFO L93 Difference]: Finished difference Result 57 states and 91 transitions. [2020-10-20 00:31:33,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:31:33,981 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:31:33,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:31:33,993 INFO L225 Difference]: With dead ends: 57 [2020-10-20 00:31:33,993 INFO L226 Difference]: Without dead ends: 26 [2020-10-20 00:31:33,997 INFO L677 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 [2020-10-20 00:31:34,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-20 00:31:34,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-20 00:31:34,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 00:31:34,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2020-10-20 00:31:34,031 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2020-10-20 00:31:34,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:31:34,031 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2020-10-20 00:31:34,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:31:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2020-10-20 00:31:34,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:31:34,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:31:34,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:31:34,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:31:34,033 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:31:34,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:31:34,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2020-10-20 00:31:34,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:31:34,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142277903] [2020-10-20 00:31:34,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:31:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:31:34,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:31:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:31:34,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:31:34,166 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:31:34,166 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:31:34,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:31:34,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:31:34 BoogieIcfgContainer [2020-10-20 00:31:34,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:31:34,214 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:31:34,214 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:31:34,214 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:31:34,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:31:33" (3/4) ... [2020-10-20 00:31:34,219 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:31:34,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:31:34,222 INFO L168 Benchmark]: Toolchain (without parser) took 1659.16 ms. Allocated memory was 36.2 MB in the beginning and 47.7 MB in the end (delta: 11.5 MB). Free memory was 19.4 MB in the beginning and 14.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:34,223 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 34.1 MB. Free memory was 12.6 MB in the beginning and 12.6 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 00:31:34,224 INFO L168 Benchmark]: CACSL2BoogieTranslator took 474.28 ms. Allocated memory was 36.2 MB in the beginning and 43.5 MB in the end (delta: 7.3 MB). Free memory was 18.5 MB in the beginning and 22.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:34,224 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.73 ms. Allocated memory is still 43.5 MB. Free memory was 22.2 MB in the beginning and 20.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:34,225 INFO L168 Benchmark]: Boogie Preprocessor took 35.79 ms. Allocated memory is still 43.5 MB. Free memory was 20.0 MB in the beginning and 18.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:34,226 INFO L168 Benchmark]: RCFGBuilder took 498.95 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 18.1 MB in the beginning and 26.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:34,227 INFO L168 Benchmark]: TraceAbstraction took 583.25 ms. Allocated memory was 45.6 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Free memory was 26.1 MB in the beginning and 15.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:34,228 INFO L168 Benchmark]: Witness Printer took 5.25 ms. Allocated memory is still 47.7 MB. Free memory was 14.7 MB in the beginning and 14.3 MB in the end (delta: 344.3 kB). Peak memory consumption was 344.3 kB. Max. memory is 14.3 GB. [2020-10-20 00:31:34,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 34.1 MB. Free memory was 12.6 MB in the beginning and 12.6 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 474.28 ms. Allocated memory was 36.2 MB in the beginning and 43.5 MB in the end (delta: 7.3 MB). Free memory was 18.5 MB in the beginning and 22.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 49.73 ms. Allocated memory is still 43.5 MB. Free memory was 22.2 MB in the beginning and 20.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 35.79 ms. Allocated memory is still 43.5 MB. Free memory was 20.0 MB in the beginning and 18.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 498.95 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 18.1 MB in the beginning and 26.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 583.25 ms. Allocated memory was 45.6 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Free memory was 26.1 MB in the beginning and 15.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. * Witness Printer took 5.25 ms. Allocated memory is still 47.7 MB. Free memory was 14.7 MB in the beginning and 14.3 MB in the end (delta: 344.3 kB). Peak memory consumption was 344.3 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 129, overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L137] double x = 0.0 / 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L138] double res = __ieee754_log(x); [L129] return x != x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L141] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0921.c", 3, "reach_error") VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 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=30occurred 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, 21 NumberOfCodeBlocks, 21 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:31:36,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:31:36,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:31:36,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:31:36,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:31:36,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:31:36,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:31:36,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:31:36,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:31:36,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:31:36,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:31:36,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:31:36,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:31:36,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:31:36,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:31:36,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:31:36,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:31:36,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:31:36,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:31:36,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:31:36,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:31:36,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:31:36,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:31:36,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:31:36,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:31:36,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:31:36,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:31:36,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:31:36,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:31:36,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:31:36,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:31:36,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:31:36,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:31:36,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:31:36,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:31:36,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:31:36,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:31:36,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:31:36,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:31:36,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:31:36,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:31:36,495 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:31:36,518 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:31:36,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:31:36,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:31:36,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:31:36,520 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:31:36,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:31:36,520 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:31:36,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:31:36,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:31:36,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:31:36,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:31:36,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:31:36,521 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:31:36,521 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:31:36,522 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:31:36,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:31:36,522 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:31:36,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:31:36,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:31:36,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:31:36,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:31:36,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:31:36,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:31:36,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:31:36,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:31:36,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:31:36,524 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:31:36,524 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:31:36,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:31:36,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:31:36,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:31:36,525 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3309a0b9ddf6a439ec38f457e14947ace4c70ec [2020-10-20 00:31:36,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:31:36,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:31:36,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:31:36,757 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:31:36,757 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:31:36,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2020-10-20 00:31:36,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18aa638e9/0fd9cfd0505e4e859ecd56f5b0d0403d/FLAG4c1fc6e27 [2020-10-20 00:31:37,360 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:31:37,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2020-10-20 00:31:37,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18aa638e9/0fd9cfd0505e4e859ecd56f5b0d0403d/FLAG4c1fc6e27 [2020-10-20 00:31:37,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18aa638e9/0fd9cfd0505e4e859ecd56f5b0d0403d [2020-10-20 00:31:37,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:31:37,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:31:37,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:31:37,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:31:37,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:31:37,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:31:37" (1/1) ... [2020-10-20 00:31:37,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@563d2ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:37, skipping insertion in model container [2020-10-20 00:31:37,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:31:37" (1/1) ... [2020-10-20 00:31:37,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:31:37,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:31:38,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:31:38,028 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:31:38,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:31:38,130 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:31:38,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38 WrapperNode [2020-10-20 00:31:38,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:31:38,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:31:38,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:31:38,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:31:38,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38" (1/1) ... [2020-10-20 00:31:38,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38" (1/1) ... [2020-10-20 00:31:38,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:31:38,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:31:38,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:31:38,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:31:38,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38" (1/1) ... [2020-10-20 00:31:38,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38" (1/1) ... [2020-10-20 00:31:38,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38" (1/1) ... [2020-10-20 00:31:38,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38" (1/1) ... [2020-10-20 00:31:38,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38" (1/1) ... [2020-10-20 00:31:38,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38" (1/1) ... [2020-10-20 00:31:38,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38" (1/1) ... [2020-10-20 00:31:38,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:31:38,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:31:38,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:31:38,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:31:38,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:31:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-20 00:31:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-20 00:31:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:31:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:31:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:31:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:31:38,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:31:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:31:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:32:03,707 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:32:03,707 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-20 00:32:03,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:03 BoogieIcfgContainer [2020-10-20 00:32:03,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:32:03,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:32:03,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:32:03,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:32:03,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:31:37" (1/3) ... [2020-10-20 00:32:03,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8abb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:03, skipping insertion in model container [2020-10-20 00:32:03,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:38" (2/3) ... [2020-10-20 00:32:03,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8abb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:03, skipping insertion in model container [2020-10-20 00:32:03,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:03" (3/3) ... [2020-10-20 00:32:03,721 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2020-10-20 00:32:03,731 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:32:03,738 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:32:03,749 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:32:03,774 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:32:03,774 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:32:03,774 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:32:03,774 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:32:03,775 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:32:03,775 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:32:03,775 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:32:03,775 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:32:03,788 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-20 00:32:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:32:03,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:03,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:03,794 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:03,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:03,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2020-10-20 00:32:03,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:03,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106766406] [2020-10-20 00:32:03,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 00:32:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:04,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:32:04,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:32:04,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:04,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:32:04,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:04,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106766406] [2020-10-20 00:32:04,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:32:04,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:32:04,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314933299] [2020-10-20 00:32:04,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:32:04,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:32:04,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:32:04,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:32:04,916 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-10-20 00:32:04,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:32:04,938 INFO L93 Difference]: Finished difference Result 57 states and 91 transitions. [2020-10-20 00:32:04,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:32:04,940 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:32:04,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:32:04,953 INFO L225 Difference]: With dead ends: 57 [2020-10-20 00:32:04,953 INFO L226 Difference]: Without dead ends: 26 [2020-10-20 00:32:04,957 INFO L677 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 [2020-10-20 00:32:04,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-20 00:32:04,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-20 00:32:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 00:32:04,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2020-10-20 00:32:04,999 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2020-10-20 00:32:04,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:32:04,999 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2020-10-20 00:32:05,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:32:05,000 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2020-10-20 00:32:05,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:32:05,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:05,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:05,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:32:05,216 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:05,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:05,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2020-10-20 00:32:05,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:05,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943753449] [2020-10-20 00:32:05,218 INFO L95 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 [2020-10-20 00:32:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:06,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 00:32:06,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:32:06,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:06,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:32:06,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:06,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943753449] [2020-10-20 00:32:06,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:32:06,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 00:32:06,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54252369] [2020-10-20 00:32:06,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:32:06,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:32:06,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:32:06,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:32:06,505 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand 6 states. [2020-10-20 00:32:14,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:32:14,080 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2020-10-20 00:32:14,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:32:14,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-20 00:32:14,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:32:14,926 INFO L225 Difference]: With dead ends: 41 [2020-10-20 00:32:14,926 INFO L226 Difference]: Without dead ends: 36 [2020-10-20 00:32:14,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:32:14,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-20 00:32:14,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 26. [2020-10-20 00:32:14,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 00:32:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2020-10-20 00:32:14,934 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 11 [2020-10-20 00:32:14,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:32:14,935 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2020-10-20 00:32:14,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:32:14,935 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2020-10-20 00:32:14,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:32:14,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:14,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:15,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:32:15,150 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:15,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:15,151 INFO L82 PathProgramCache]: Analyzing trace with hash -594923761, now seen corresponding path program 1 times [2020-10-20 00:32:15,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:15,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105456910] [2020-10-20 00:32:15,153 INFO L95 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 [2020-10-20 00:32:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:15,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 00:32:15,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:32:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:15,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:32:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:16,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105456910] [2020-10-20 00:32:16,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:32:16,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-20 00:32:16,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393810060] [2020-10-20 00:32:16,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 00:32:16,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:32:16,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 00:32:16,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:32:16,582 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand 10 states. [2020-10-20 00:33:03,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:03,250 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2020-10-20 00:33:03,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 00:33:03,255 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-10-20 00:33:03,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:03,256 INFO L225 Difference]: With dead ends: 36 [2020-10-20 00:33:03,256 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 00:33:03,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-20 00:33:03,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 00:33:03,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2020-10-20 00:33:03,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 00:33:03,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-10-20 00:33:03,263 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 11 [2020-10-20 00:33:03,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:03,263 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-10-20 00:33:03,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 00:33:03,264 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2020-10-20 00:33:03,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 00:33:03,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:03,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:03,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:33:03,474 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:03,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:03,475 INFO L82 PathProgramCache]: Analyzing trace with hash 464451163, now seen corresponding path program 1 times [2020-10-20 00:33:03,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:33:03,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597717961] [2020-10-20 00:33:03,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 00:33:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:33:03,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:33:03,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:33:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:03,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:33:08,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:08,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597717961] [2020-10-20 00:33:08,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:08,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:33:08,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923465101] [2020-10-20 00:33:08,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:33:08,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:33:08,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:33:08,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2020-10-20 00:33:08,023 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand 8 states. [2020-10-20 00:33:12,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:12,717 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-10-20 00:33:13,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 00:33:13,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-10-20 00:33:13,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:13,625 INFO L225 Difference]: With dead ends: 47 [2020-10-20 00:33:13,626 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 00:33:13,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=41, Invalid=67, Unknown=2, NotChecked=0, Total=110 [2020-10-20 00:33:13,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 00:33:13,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2020-10-20 00:33:13,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 00:33:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2020-10-20 00:33:13,631 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 17 [2020-10-20 00:33:13,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:13,632 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-10-20 00:33:13,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:33:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2020-10-20 00:33:13,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-20 00:33:13,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:13,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:13,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 00:33:13,838 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:13,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:13,838 INFO L82 PathProgramCache]: Analyzing trace with hash -2124593878, now seen corresponding path program 1 times [2020-10-20 00:33:13,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:33:13,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629493690] [2020-10-20 00:33:13,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-20 00:33:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:33:14,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:33:14,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:33:14,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:14,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:33:14,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:14,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629493690] [2020-10-20 00:33:14,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:14,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:33:14,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048948258] [2020-10-20 00:33:14,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:33:14,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:33:14,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:33:14,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:33:14,518 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 8 states. [2020-10-20 00:33:14,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:14,700 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2020-10-20 00:33:14,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:33:14,709 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-20 00:33:14,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:14,709 INFO L225 Difference]: With dead ends: 26 [2020-10-20 00:33:14,709 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:33:14,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:33:14,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:33:14,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:33:14,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:33:14,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:33:14,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-20 00:33:14,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:14,711 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:33:14,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:33:14,711 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:33:14,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:33:14,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 00:33:14,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:33:15,032 INFO L274 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2020-10-20 00:33:15,032 INFO L274 CegarLoopResult]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2020-10-20 00:33:15,033 INFO L274 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2020-10-20 00:33:15,033 INFO L270 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___ieee754_log_~x))) [2020-10-20 00:33:15,033 INFO L274 CegarLoopResult]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2020-10-20 00:33:15,033 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:33:15,033 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:33:15,033 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:33:15,033 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:33:15,034 INFO L274 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2020-10-20 00:33:15,034 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:33:15,034 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:33:15,034 INFO L274 CegarLoopResult]: For program point L86(lines 86 102) no Hoare annotation was computed. [2020-10-20 00:33:15,034 INFO L274 CegarLoopResult]: For program point L115(lines 115 119) no Hoare annotation was computed. [2020-10-20 00:33:15,034 INFO L274 CegarLoopResult]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2020-10-20 00:33:15,034 INFO L270 CegarLoopResult]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2020-10-20 00:33:15,034 INFO L274 CegarLoopResult]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2020-10-20 00:33:15,034 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:33:15,035 INFO L270 CegarLoopResult]: At program point L124(lines 47 126) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___ieee754_log_~x) (= currentRoundingMode roundNearestTiesToEven) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_log_#res|)) [2020-10-20 00:33:15,035 INFO L274 CegarLoopResult]: For program point L87(lines 87 94) no Hoare annotation was computed. [2020-10-20 00:33:15,035 INFO L274 CegarLoopResult]: For program point L141(lines 141 144) no Hoare annotation was computed. [2020-10-20 00:33:15,035 INFO L274 CegarLoopResult]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2020-10-20 00:33:15,035 INFO L270 CegarLoopResult]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2020-10-20 00:33:15,035 INFO L270 CegarLoopResult]: At program point L129(line 129) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___ieee754_log_~x) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_log_#res|)) [2020-10-20 00:33:15,036 INFO L274 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2020-10-20 00:33:15,036 INFO L274 CegarLoopResult]: For program point L63(lines 63 64) no Hoare annotation was computed. [2020-10-20 00:33:15,036 INFO L274 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2020-10-20 00:33:15,036 INFO L274 CegarLoopResult]: For program point L88(lines 88 93) no Hoare annotation was computed. [2020-10-20 00:33:15,036 INFO L277 CegarLoopResult]: At program point L146(lines 131 147) the Hoare annotation is: true [2020-10-20 00:33:15,036 INFO L274 CegarLoopResult]: For program point L113(lines 113 125) no Hoare annotation was computed. [2020-10-20 00:33:15,047 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,048 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,048 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,048 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,054 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,055 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,055 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,055 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,057 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,058 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,058 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,058 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,058 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,058 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,059 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,059 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,059 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,060 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,061 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:33:15,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,062 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,062 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:33:15,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:33:15 BoogieIcfgContainer [2020-10-20 00:33:15,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:33:15,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:33:15,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:33:15,067 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:33:15,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:03" (3/4) ... [2020-10-20 00:33:15,071 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:33:15,083 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 00:33:15,083 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:33:15,084 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:33:15,084 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:33:15,117 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2020-10-20 00:33:15,117 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result [2020-10-20 00:33:15,118 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result [2020-10-20 00:33:15,189 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:33:15,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:33:15,193 INFO L168 Benchmark]: Toolchain (without parser) took 97511.03 ms. Allocated memory was 34.6 MB in the beginning and 46.7 MB in the end (delta: 12.1 MB). Free memory was 15.8 MB in the beginning and 26.9 MB in the end (delta: -11.1 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:15,194 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 33.6 MB. Free memory was 10.9 MB in the beginning and 10.8 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:33:15,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.11 ms. Allocated memory was 34.6 MB in the beginning and 43.0 MB in the end (delta: 8.4 MB). Free memory was 14.9 MB in the beginning and 19.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:15,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.17 ms. Allocated memory is still 43.0 MB. Free memory was 19.7 MB in the beginning and 17.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:15,196 INFO L168 Benchmark]: Boogie Preprocessor took 43.91 ms. Allocated memory is still 43.0 MB. Free memory was 17.3 MB in the beginning and 15.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:15,196 INFO L168 Benchmark]: RCFGBuilder took 25480.55 ms. Allocated memory was 43.0 MB in the beginning and 44.6 MB in the end (delta: 1.6 MB). Free memory was 15.2 MB in the beginning and 17.2 MB in the end (delta: -2.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:15,197 INFO L168 Benchmark]: TraceAbstraction took 71353.44 ms. Allocated memory was 44.6 MB in the beginning and 46.1 MB in the end (delta: 1.6 MB). Free memory was 16.7 MB in the beginning and 15.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:15,197 INFO L168 Benchmark]: Witness Printer took 123.23 ms. Allocated memory was 46.1 MB in the beginning and 46.7 MB in the end (delta: 524.3 kB). Free memory was 15.0 MB in the beginning and 26.9 MB in the end (delta: -11.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:15,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 33.6 MB. Free memory was 10.9 MB in the beginning and 10.8 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 444.11 ms. Allocated memory was 34.6 MB in the beginning and 43.0 MB in the end (delta: 8.4 MB). Free memory was 14.9 MB in the beginning and 19.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 53.17 ms. Allocated memory is still 43.0 MB. Free memory was 19.7 MB in the beginning and 17.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 43.91 ms. Allocated memory is still 43.0 MB. Free memory was 17.3 MB in the beginning and 15.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 25480.55 ms. Allocated memory was 43.0 MB in the beginning and 44.6 MB in the end (delta: 1.6 MB). Free memory was 15.2 MB in the beginning and 17.2 MB in the end (delta: -2.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 71353.44 ms. Allocated memory was 44.6 MB in the beginning and 46.1 MB in the end (delta: 1.6 MB). Free memory was 16.7 MB in the beginning and 15.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * Witness Printer took 123.23 ms. Allocated memory was 46.1 MB in the beginning and 46.7 MB in the end (delta: 524.3 kB). Free memory was 15.0 MB in the beginning and 26.9 MB in the end (delta: -11.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 129]: Loop Invariant [2020-10-20 00:33:15,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant [2020-10-20 00:33:15,217 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,218 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,218 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,218 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,220 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,220 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,220 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant [2020-10-20 00:33:15,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,221 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:33:15,222 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:33:15,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:33:15,222 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:33:15,223 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 71.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 60.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 120 SDslu, 292 SDs, 0 SdLazy, 129 SolverSat, 22 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 55.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 61 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 23 QuantifiedInterpolants, 9392 SizeOfPredicates, 31 NumberOfNonLiveVariables, 343 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...