./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0921.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_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 1136c048c7bb954ba4fcc2a6dd3e995696fc40b9 ................................................................................................................................................................................................................................................................................................... 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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_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 1136c048c7bb954ba4fcc2a6dd3e995696fc40b9 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:59:03,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:59:03,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:59:03,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:59:03,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:59:03,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:59:03,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:59:03,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:59:03,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:59:03,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:59:03,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:59:03,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:59:03,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:59:03,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:59:03,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:59:03,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:59:03,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:59:03,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:59:03,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:59:03,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:59:03,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:59:03,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:59:03,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:59:03,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:59:03,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:59:03,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:59:03,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:59:03,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:59:03,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:59:03,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:59:03,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:59:03,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:59:03,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:59:03,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:59:03,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:59:03,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:59:03,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:59:03,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:59:03,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:59:03,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:59:03,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:59:03,630 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:59:03,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:59:03,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:59:03,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:59:03,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:59:03,661 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:59:03,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:59:03,662 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:59:03,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:59:03,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:59:03,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:59:03,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:59:03,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:59:03,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:59:03,664 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:59:03,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:59:03,664 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:59:03,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:59:03,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:59:03,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:59:03,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:59:03,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:59:03,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:59:03,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:59:03,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:59:03,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:59:03,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:59:03,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:59:03,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:59:03,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:59:03,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1136c048c7bb954ba4fcc2a6dd3e995696fc40b9 [2020-10-25 21:59:04,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:59:04,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:59:04,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:59:04,211 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:59:04,213 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:59:04,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2020-10-25 21:59:04,304 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/495743354/c123c177977b48c4bd1898e9129536d6/FLAG0c56e0974 [2020-10-25 21:59:04,897 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:59:04,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2020-10-25 21:59:04,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/495743354/c123c177977b48c4bd1898e9129536d6/FLAG0c56e0974 [2020-10-25 21:59:05,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/495743354/c123c177977b48c4bd1898e9129536d6 [2020-10-25 21:59:05,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:59:05,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:59:05,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:59:05,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:59:05,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:59:05,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:59:05" (1/1) ... [2020-10-25 21:59:05,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c381a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05, skipping insertion in model container [2020-10-25 21:59:05,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:59:05" (1/1) ... [2020-10-25 21:59:05,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:59:05,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:59:05,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:59:05,770 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:59:05,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:59:05,844 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:59:05,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05 WrapperNode [2020-10-25 21:59:05,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:59:05,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:59:05,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:59:05,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:59:05,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05" (1/1) ... [2020-10-25 21:59:05,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05" (1/1) ... [2020-10-25 21:59:05,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:59:05,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:59:05,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:59:05,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:59:05,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05" (1/1) ... [2020-10-25 21:59:05,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05" (1/1) ... [2020-10-25 21:59:05,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05" (1/1) ... [2020-10-25 21:59:05,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05" (1/1) ... [2020-10-25 21:59:05,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05" (1/1) ... [2020-10-25 21:59:05,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05" (1/1) ... [2020-10-25 21:59:05,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05" (1/1) ... [2020-10-25 21:59:05,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:59:05,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:59:05,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:59:05,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:59:05,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05" (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 [2020-10-25 21:59:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:59:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:59:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 21:59:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 21:59:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 21:59:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:59:06,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:59:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 21:59:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:59:06,417 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:59:06,417 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-25 21:59:06,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:59:06 BoogieIcfgContainer [2020-10-25 21:59:06,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:59:06,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:59:06,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:59:06,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:59:06,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:59:05" (1/3) ... [2020-10-25 21:59:06,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f26e818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:59:06, skipping insertion in model container [2020-10-25 21:59:06,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:05" (2/3) ... [2020-10-25 21:59:06,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f26e818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:59:06, skipping insertion in model container [2020-10-25 21:59:06,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:59:06" (3/3) ... [2020-10-25 21:59:06,430 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2020-10-25 21:59:06,444 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:59:06,449 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:59:06,475 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:59:06,547 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:59:06,547 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:59:06,548 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:59:06,548 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:59:06,548 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:59:06,548 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:59:06,548 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:59:06,548 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:59:06,574 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-25 21:59:06,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-25 21:59:06,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:59:06,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:59:06,582 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:59:06,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:59:06,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2020-10-25 21:59:06,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:59:06,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101806473] [2020-10-25 21:59:06,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:59:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:59:06,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:06,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101806473] [2020-10-25 21:59:06,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:59:06,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 21:59:06,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742416476] [2020-10-25 21:59:06,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:59:06,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 21:59:06,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:59:06,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:59:06,906 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-10-25 21:59:06,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:59:06,939 INFO L93 Difference]: Finished difference Result 59 states and 93 transitions. [2020-10-25 21:59:06,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:59:06,941 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-25 21:59:06,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:59:06,955 INFO L225 Difference]: With dead ends: 59 [2020-10-25 21:59:06,955 INFO L226 Difference]: Without dead ends: 27 [2020-10-25 21:59:06,961 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 [2020-10-25 21:59:06,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-25 21:59:07,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-25 21:59:07,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-25 21:59:07,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-10-25 21:59:07,008 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2020-10-25 21:59:07,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:59:07,010 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-10-25 21:59:07,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:59:07,010 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-10-25 21:59:07,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 21:59:07,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:59:07,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:59:07,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:59:07,013 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:59:07,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:59:07,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2020-10-25 21:59:07,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:59:07,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810193627] [2020-10-25 21:59:07,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:59:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:59:07,137 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:59:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:59:07,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:59:07,274 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:59:07,275 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:59:07,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 21:59:07,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:59:07 BoogieIcfgContainer [2020-10-25 21:59:07,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:59:07,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:59:07,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:59:07,354 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:59:07,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:59:06" (3/4) ... [2020-10-25 21:59:07,358 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:59:07,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:59:07,363 INFO L168 Benchmark]: Toolchain (without parser) took 2085.89 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.2 MB in the beginning and 30.6 MB in the end (delta: -3.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:07,364 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 41.9 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:59:07,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.64 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 25.9 MB in the end (delta: 815.7 kB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:07,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.63 ms. Allocated memory is still 50.3 MB. Free memory was 25.9 MB in the beginning and 23.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:07,369 INFO L168 Benchmark]: Boogie Preprocessor took 67.94 ms. Allocated memory is still 50.3 MB. Free memory was 23.9 MB in the beginning and 34.1 MB in the end (delta: -10.2 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:07,370 INFO L168 Benchmark]: RCFGBuilder took 449.58 ms. Allocated memory is still 50.3 MB. Free memory was 33.9 MB in the beginning and 28.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:07,371 INFO L168 Benchmark]: TraceAbstraction took 931.29 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.5 MB in the beginning and 31.0 MB in the end (delta: -3.5 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:07,375 INFO L168 Benchmark]: Witness Printer took 4.84 ms. Allocated memory is still 60.8 MB. Free memory was 31.0 MB in the beginning and 30.6 MB in the end (delta: 418.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:07,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 41.9 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 560.64 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 25.9 MB in the end (delta: 815.7 kB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.63 ms. Allocated memory is still 50.3 MB. Free memory was 25.9 MB in the beginning and 23.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.94 ms. Allocated memory is still 50.3 MB. Free memory was 23.9 MB in the beginning and 34.1 MB in the end (delta: -10.2 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 449.58 ms. Allocated memory is still 50.3 MB. Free memory was 33.9 MB in the beginning and 28.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 931.29 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.5 MB in the beginning and 31.0 MB in the end (delta: -3.5 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.84 ms. Allocated memory is still 60.8 MB. Free memory was 31.0 MB in the beginning and 30.6 MB in the end (delta: 418.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 someBinaryFLOATComparisonOperation at line 113, overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 45. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L121] float x = 0.0f / 0.0f; [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (ix) = gf_u.word [L44] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L122] float res = __ieee754_logf(x); [L113] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L125] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0921.c", 3, "reach_error") VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 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=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 0.2.0-5485861 [2020-10-25 21:59:10,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:59:10,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:59:10,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:59:10,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:59:10,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:59:10,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:59:10,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:59:10,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:59:10,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:59:10,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:59:10,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:59:10,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:59:10,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:59:10,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:59:10,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:59:10,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:59:10,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:59:10,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:59:10,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:59:10,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:59:10,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:59:10,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:59:10,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:59:10,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:59:10,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:59:10,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:59:10,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:59:10,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:59:10,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:59:10,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:59:10,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:59:10,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:59:10,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:59:10,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:59:10,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:59:10,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:59:10,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:59:10,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:59:10,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:59:10,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:59:10,141 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:59:10,177 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:59:10,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:59:10,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:59:10,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:59:10,180 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:59:10,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:59:10,181 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:59:10,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:59:10,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:59:10,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:59:10,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:59:10,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:59:10,183 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:59:10,184 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:59:10,184 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:59:10,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:59:10,185 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:59:10,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:59:10,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:59:10,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:59:10,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:59:10,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:59:10,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:59:10,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:59:10,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:59:10,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:59:10,188 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:59:10,189 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:59:10,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:59:10,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:59:10,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:59:10,190 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1136c048c7bb954ba4fcc2a6dd3e995696fc40b9 [2020-10-25 21:59:10,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:59:10,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:59:10,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:59:10,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:59:10,611 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:59:10,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2020-10-25 21:59:10,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33673f54e/1f007a72bda64fb5a270c7c6cfd9115f/FLAG3f64614da [2020-10-25 21:59:11,374 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:59:11,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2020-10-25 21:59:11,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33673f54e/1f007a72bda64fb5a270c7c6cfd9115f/FLAG3f64614da [2020-10-25 21:59:11,715 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33673f54e/1f007a72bda64fb5a270c7c6cfd9115f [2020-10-25 21:59:11,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:59:11,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:59:11,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:59:11,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:59:11,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:59:11,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:59:11" (1/1) ... [2020-10-25 21:59:11,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405ee40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:11, skipping insertion in model container [2020-10-25 21:59:11,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:59:11" (1/1) ... [2020-10-25 21:59:11,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:59:11,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:59:12,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:59:12,142 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:59:12,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:59:12,224 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:59:12,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12 WrapperNode [2020-10-25 21:59:12,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:59:12,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:59:12,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:59:12,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:59:12,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12" (1/1) ... [2020-10-25 21:59:12,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12" (1/1) ... [2020-10-25 21:59:12,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:59:12,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:59:12,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:59:12,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:59:12,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12" (1/1) ... [2020-10-25 21:59:12,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12" (1/1) ... [2020-10-25 21:59:12,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12" (1/1) ... [2020-10-25 21:59:12,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12" (1/1) ... [2020-10-25 21:59:12,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12" (1/1) ... [2020-10-25 21:59:12,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12" (1/1) ... [2020-10-25 21:59:12,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12" (1/1) ... [2020-10-25 21:59:12,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:59:12,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:59:12,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:59:12,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:59:12,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12" (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 [2020-10-25 21:59:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:59:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:59:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-25 21:59:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 21:59:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:59:12,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:59:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-25 21:59:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 21:59:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:59:25,549 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:59:25,549 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-25 21:59:25,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:59:25 BoogieIcfgContainer [2020-10-25 21:59:25,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:59:25,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:59:25,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:59:25,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:59:25,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:59:11" (1/3) ... [2020-10-25 21:59:25,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2556cabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:59:25, skipping insertion in model container [2020-10-25 21:59:25,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:12" (2/3) ... [2020-10-25 21:59:25,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2556cabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:59:25, skipping insertion in model container [2020-10-25 21:59:25,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:59:25" (3/3) ... [2020-10-25 21:59:25,562 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2020-10-25 21:59:25,575 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:59:25,581 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:59:25,596 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:59:25,626 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:59:25,627 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:59:25,627 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:59:25,627 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:59:25,628 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:59:25,628 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:59:25,628 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:59:25,628 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:59:25,644 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-25 21:59:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-25 21:59:25,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:59:25,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:59:25,652 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:59:25,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:59:25,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2020-10-25 21:59:25,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:59:25,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457424006] [2020-10-25 21:59:25,675 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 [2020-10-25 21:59:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:59:26,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 21:59:26,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:59:26,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:26,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:59:26,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:26,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457424006] [2020-10-25 21:59:26,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:59:26,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 21:59:26,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713111949] [2020-10-25 21:59:26,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:59:26,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:59:26,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:59:26,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:59:26,363 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-10-25 21:59:26,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:59:26,385 INFO L93 Difference]: Finished difference Result 59 states and 93 transitions. [2020-10-25 21:59:26,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:59:26,387 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-25 21:59:26,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:59:26,398 INFO L225 Difference]: With dead ends: 59 [2020-10-25 21:59:26,398 INFO L226 Difference]: Without dead ends: 27 [2020-10-25 21:59:26,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:59:26,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-25 21:59:26,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-25 21:59:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-25 21:59:26,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-10-25 21:59:26,441 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2020-10-25 21:59:26,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:59:26,441 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-10-25 21:59:26,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:59:26,442 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-10-25 21:59:26,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 21:59:26,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:59:26,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:59:26,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:59:26,659 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:59:26,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:59:26,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2020-10-25 21:59:26,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:59:26,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808630061] [2020-10-25 21:59:26,663 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 [2020-10-25 21:59:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:59:27,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-25 21:59:27,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:59:27,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:27,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:59:27,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:27,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808630061] [2020-10-25 21:59:27,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:59:27,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-25 21:59:27,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384120503] [2020-10-25 21:59:27,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 21:59:27,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:59:27,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 21:59:27,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 21:59:27,503 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 6 states. [2020-10-25 21:59:30,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:59:30,740 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2020-10-25 21:59:30,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 21:59:30,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-25 21:59:30,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:59:30,905 INFO L225 Difference]: With dead ends: 42 [2020-10-25 21:59:30,905 INFO L226 Difference]: Without dead ends: 37 [2020-10-25 21:59:30,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-25 21:59:30,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-25 21:59:30,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2020-10-25 21:59:30,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-25 21:59:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-10-25 21:59:30,913 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-10-25 21:59:30,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:59:30,914 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-25 21:59:30,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 21:59:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-10-25 21:59:30,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:59:30,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:59:30,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:59:31,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 21:59:31,129 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:59:31,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:59:31,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2020-10-25 21:59:31,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:59:31,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445811583] [2020-10-25 21:59:31,133 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 [2020-10-25 21:59:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:59:31,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-25 21:59:31,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:59:31,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:31,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:59:37,649 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-10-25 21:59:37,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:37,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445811583] [2020-10-25 21:59:37,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:59:37,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-25 21:59:37,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104066770] [2020-10-25 21:59:37,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-25 21:59:37,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:59:37,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-25 21:59:37,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-25 21:59:37,672 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 10 states. [2020-10-25 22:00:04,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:00:04,317 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2020-10-25 22:00:04,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 22:00:04,320 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-10-25 22:00:04,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:00:04,321 INFO L225 Difference]: With dead ends: 37 [2020-10-25 22:00:04,321 INFO L226 Difference]: Without dead ends: 32 [2020-10-25 22:00:04,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-25 22:00:04,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-25 22:00:04,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2020-10-25 22:00:04,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-25 22:00:04,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2020-10-25 22:00:04,335 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2020-10-25 22:00:04,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:00:04,336 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-10-25 22:00:04,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-25 22:00:04,336 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2020-10-25 22:00:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-25 22:00:04,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:00:04,337 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] [2020-10-25 22:00:04,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 22:00:04,551 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:00:04,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:00:04,553 INFO L82 PathProgramCache]: Analyzing trace with hash 933407232, now seen corresponding path program 1 times [2020-10-25 22:00:04,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:00:04,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350192325] [2020-10-25 22:00:04,554 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 [2020-10-25 22:00:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:00:04,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-25 22:00:04,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:00:05,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:05,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:00:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:05,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350192325] [2020-10-25 22:00:05,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:00:05,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-25 22:00:05,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591485699] [2020-10-25 22:00:05,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 22:00:05,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:00:05,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 22:00:05,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-25 22:00:05,253 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand 8 states. [2020-10-25 22:00:05,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:00:05,390 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2020-10-25 22:00:05,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 22:00:05,390 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-10-25 22:00:05,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:00:05,391 INFO L225 Difference]: With dead ends: 27 [2020-10-25 22:00:05,391 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 22:00:05,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-25 22:00:05,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 22:00:05,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 22:00:05,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 22:00:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 22:00:05,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-25 22:00:05,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:00:05,393 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 22:00:05,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 22:00:05,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 22:00:05,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 22:00:05,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-25 22:00:05,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 22:00:05,787 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 22:00:05,788 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 22:00:05,788 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 22:00:05,788 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 22:00:05,788 INFO L274 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2020-10-25 22:00:05,788 INFO L274 CegarLoopResult]: For program point L70(lines 70 86) no Hoare annotation was computed. [2020-10-25 22:00:05,788 INFO L274 CegarLoopResult]: For program point L54-1(lines 54 58) no Hoare annotation was computed. [2020-10-25 22:00:05,788 INFO L270 CegarLoopResult]: At program point L54-2(lines 54 58) the Hoare annotation is: false [2020-10-25 22:00:05,789 INFO L274 CegarLoopResult]: For program point L71(lines 71 78) no Hoare annotation was computed. [2020-10-25 22:00:05,789 INFO L274 CegarLoopResult]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2020-10-25 22:00:05,789 INFO L270 CegarLoopResult]: At program point L38-2(lines 38 42) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0)) [2020-10-25 22:00:05,791 INFO L274 CegarLoopResult]: For program point L38-3(lines 38 42) no Hoare annotation was computed. [2020-10-25 22:00:05,792 INFO L274 CegarLoopResult]: For program point L63-1(lines 63 67) no Hoare annotation was computed. [2020-10-25 22:00:05,792 INFO L270 CegarLoopResult]: At program point L63-2(lines 63 67) the Hoare annotation is: false [2020-10-25 22:00:05,792 INFO L274 CegarLoopResult]: For program point L63-3(lines 63 67) no Hoare annotation was computed. [2020-10-25 22:00:05,792 INFO L270 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0)) [2020-10-25 22:00:05,792 INFO L274 CegarLoopResult]: For program point L80(lines 80 85) no Hoare annotation was computed. [2020-10-25 22:00:05,792 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-10-25 22:00:05,793 INFO L274 CegarLoopResult]: For program point L105(lines 105 108) no Hoare annotation was computed. [2020-10-25 22:00:05,793 INFO L274 CegarLoopResult]: For program point L72(lines 72 77) no Hoare annotation was computed. [2020-10-25 22:00:05,793 INFO L277 CegarLoopResult]: At program point L130(lines 115 131) the Hoare annotation is: true [2020-10-25 22:00:05,793 INFO L274 CegarLoopResult]: For program point L97(lines 97 109) no Hoare annotation was computed. [2020-10-25 22:00:05,793 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 22:00:05,793 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 22:00:05,793 INFO L274 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2020-10-25 22:00:05,793 INFO L274 CegarLoopResult]: For program point L99(lines 99 103) no Hoare annotation was computed. [2020-10-25 22:00:05,794 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 22:00:05,794 INFO L270 CegarLoopResult]: At program point L108(lines 34 110) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0)) [2020-10-25 22:00:05,794 INFO L274 CegarLoopResult]: For program point L125(lines 125 128) no Hoare annotation was computed. [2020-10-25 22:00:05,795 INFO L274 CegarLoopResult]: For program point L51(lines 51 59) no Hoare annotation was computed. [2020-10-25 22:00:05,795 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 59) no Hoare annotation was computed. [2020-10-25 22:00:05,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,814 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,815 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,819 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,826 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,826 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,826 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,832 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,834 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,835 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,836 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,837 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,840 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,851 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,852 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,852 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,852 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,853 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,853 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,854 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,859 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 22:00:05,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:05,861 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 22:00:05,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:05,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:00:05 BoogieIcfgContainer [2020-10-25 22:00:05,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:00:05,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:00:05,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:00:05,865 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:00:05,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:59:25" (3/4) ... [2020-10-25 22:00:05,870 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 22:00:05,889 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-25 22:00:05,890 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 22:00:05,890 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 22:00:05,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 22:00:05,927 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log [2020-10-25 22:00:05,928 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log [2020-10-25 22:00:05,930 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log [2020-10-25 22:00:06,015 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 22:00:06,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:00:06,018 INFO L168 Benchmark]: Toolchain (without parser) took 54296.03 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 25.6 MB in the beginning and 42.4 MB in the end (delta: -16.8 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:06,019 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 48.2 MB. Free memory is still 25.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:00:06,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.17 ms. Allocated memory is still 48.2 MB. Free memory was 25.0 MB in the beginning and 25.3 MB in the end (delta: -249.7 kB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:06,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.81 ms. Allocated memory is still 48.2 MB. Free memory was 25.3 MB in the beginning and 23.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:06,021 INFO L168 Benchmark]: Boogie Preprocessor took 83.85 ms. Allocated memory is still 48.2 MB. Free memory was 23.3 MB in the beginning and 21.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:06,021 INFO L168 Benchmark]: RCFGBuilder took 13135.07 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 21.3 MB in the beginning and 40.7 MB in the end (delta: -19.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:06,022 INFO L168 Benchmark]: TraceAbstraction took 40311.04 ms. Allocated memory is still 60.8 MB. Free memory was 40.2 MB in the beginning and 25.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:06,022 INFO L168 Benchmark]: Witness Printer took 150.68 ms. Allocated memory is still 60.8 MB. Free memory was 25.8 MB in the beginning and 42.4 MB in the end (delta: -16.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:06,025 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 48.2 MB. Free memory is still 25.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 497.17 ms. Allocated memory is still 48.2 MB. Free memory was 25.0 MB in the beginning and 25.3 MB in the end (delta: -249.7 kB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.81 ms. Allocated memory is still 48.2 MB. Free memory was 25.3 MB in the beginning and 23.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.85 ms. Allocated memory is still 48.2 MB. Free memory was 23.3 MB in the beginning and 21.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 13135.07 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 21.3 MB in the beginning and 40.7 MB in the end (delta: -19.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 40311.04 ms. Allocated memory is still 60.8 MB. Free memory was 40.2 MB in the beginning and 25.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Witness Printer took 150.68 ms. Allocated memory is still 60.8 MB. Free memory was 25.8 MB in the beginning and 42.4 MB in the end (delta: -16.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 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 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 - 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: 113]: Loop Invariant [2020-10-25 22:00:06,048 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,048 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,048 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,049 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,049 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,049 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,049 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,050 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,051 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,051 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,051 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,051 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,051 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log - InvariantResult [Line: 34]: Loop Invariant [2020-10-25 22:00:06,064 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,065 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,065 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,065 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,065 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,065 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,067 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,067 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,067 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,067 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,067 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,068 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant [2020-10-25 22:00:06,070 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,070 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 22:00:06,070 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,070 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,071 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:00:06,071 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 22:00:06,071 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:00:06,072 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 39.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 30.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 86 SDtfs, 105 SDslu, 154 SDs, 0 SdLazy, 112 SolverSat, 12 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 28.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 86 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 12 QuantifiedInterpolants, 6458 SizeOfPredicates, 24 NumberOfNonLiveVariables, 238 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! Received shutdown request...