./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.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 3c929687e1048988919d423afa09e6828bbc6230 ................................................................................................................................................................................................................................................................................................. 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.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 3c929687e1048988919d423afa09e6828bbc6230 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 15:53:58,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:53:58,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:53:58,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:53:58,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:53:58,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:53:58,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:53:58,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:53:58,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:53:58,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:53:58,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:53:58,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:53:58,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:53:58,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:53:58,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:53:58,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:53:58,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:53:58,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:53:58,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:53:58,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:53:58,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:53:58,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:53:58,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:53:59,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:53:59,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:53:59,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:53:59,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:53:59,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:53:59,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:53:59,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:53:59,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:53:59,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:53:59,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:53:59,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:53:59,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:53:59,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:53:59,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:53:59,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:53:59,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:53:59,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:53:59,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:53:59,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:53:59,086 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:53:59,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:53:59,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:53:59,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:53:59,090 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:53:59,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:53:59,091 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:53:59,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:53:59,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:53:59,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:53:59,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:53:59,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:53:59,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:53:59,094 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:53:59,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:53:59,094 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:53:59,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:53:59,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:53:59,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:53:59,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:53:59,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:53:59,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:53:59,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:53:59,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:53:59,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:53:59,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:53:59,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:53:59,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:53:59,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:53:59,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2020-12-02 15:53:59,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:53:59,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:53:59,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:53:59,516 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:53:59,518 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:53:59,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-12-02 15:53:59,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32597a0c2/8be10d024b2f4173b4b97205a7d686eb/FLAG1c4be00d9 [2020-12-02 15:54:00,146 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:54:00,147 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-12-02 15:54:00,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32597a0c2/8be10d024b2f4173b4b97205a7d686eb/FLAG1c4be00d9 [2020-12-02 15:54:00,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32597a0c2/8be10d024b2f4173b4b97205a7d686eb [2020-12-02 15:54:00,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:54:00,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:54:00,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:54:00,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:54:00,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:54:00,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:54:00" (1/1) ... [2020-12-02 15:54:00,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef41118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00, skipping insertion in model container [2020-12-02 15:54:00,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:54:00" (1/1) ... [2020-12-02 15:54:00,534 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:54:00,555 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:54:00,822 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c[2069,2082] [2020-12-02 15:54:00,826 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:54:00,837 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:54:00,873 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c[2069,2082] [2020-12-02 15:54:00,874 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:54:00,899 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:54:00,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00 WrapperNode [2020-12-02 15:54:00,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:54:00,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:54:00,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:54:00,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:54:00,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00" (1/1) ... [2020-12-02 15:54:00,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00" (1/1) ... [2020-12-02 15:54:00,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:54:00,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:54:00,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:54:00,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:54:00,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00" (1/1) ... [2020-12-02 15:54:00,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00" (1/1) ... [2020-12-02 15:54:00,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00" (1/1) ... [2020-12-02 15:54:00,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00" (1/1) ... [2020-12-02 15:54:01,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00" (1/1) ... [2020-12-02 15:54:01,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00" (1/1) ... [2020-12-02 15:54:01,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00" (1/1) ... [2020-12-02 15:54:01,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:54:01,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:54:01,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:54:01,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:54:01,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00" (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 [2020-12-02 15:54:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 15:54:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:54:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 15:54:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 15:54:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 15:54:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:54:01,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:54:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 15:54:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:54:01,532 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:54:01,533 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-02 15:54:01,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:54:01 BoogieIcfgContainer [2020-12-02 15:54:01,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:54:01,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:54:01,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:54:01,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:54:01,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:54:00" (1/3) ... [2020-12-02 15:54:01,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72274db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:54:01, skipping insertion in model container [2020-12-02 15:54:01,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:00" (2/3) ... [2020-12-02 15:54:01,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72274db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:54:01, skipping insertion in model container [2020-12-02 15:54:01,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:54:01" (3/3) ... [2020-12-02 15:54:01,548 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-12-02 15:54:01,567 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:54:01,572 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:54:01,588 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:54:01,631 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:54:01,631 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:54:01,632 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:54:01,632 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:54:01,632 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:54:01,632 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:54:01,633 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:54:01,633 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:54:01,655 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-02 15:54:01,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 15:54:01,671 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:54:01,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:54:01,676 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:54:01,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:54:01,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-12-02 15:54:01,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:54:01,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556654558] [2020-12-02 15:54:01,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:54:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:54:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:54:01,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556654558] [2020-12-02 15:54:01,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:54:01,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 15:54:01,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483916663] [2020-12-02 15:54:01,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:54:01,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 15:54:01,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:54:01,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:54:01,954 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-02 15:54:01,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:54:01,976 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2020-12-02 15:54:01,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:54:01,978 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-02 15:54:01,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:54:01,988 INFO L225 Difference]: With dead ends: 72 [2020-12-02 15:54:01,988 INFO L226 Difference]: Without dead ends: 34 [2020-12-02 15:54:01,992 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 [2020-12-02 15:54:02,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-02 15:54:02,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-02 15:54:02,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-02 15:54:02,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-12-02 15:54:02,030 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-12-02 15:54:02,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:54:02,030 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-12-02 15:54:02,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:54:02,030 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-12-02 15:54:02,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 15:54:02,031 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:54:02,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:54:02,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 15:54:02,032 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:54:02,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:54:02,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-12-02 15:54:02,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:54:02,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618246461] [2020-12-02 15:54:02,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:54:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:54:02,078 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:54:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:54:02,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:54:02,131 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 15:54:02,132 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:54:02,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 15:54:02,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:54:02 BoogieIcfgContainer [2020-12-02 15:54:02,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:54:02,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:54:02,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:54:02,190 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:54:02,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:54:01" (3/4) ... [2020-12-02 15:54:02,194 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 15:54:02,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:54:02,196 INFO L168 Benchmark]: Toolchain (without parser) took 1680.77 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 30.9 MB in the beginning and 49.8 MB in the end (delta: -18.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:54:02,197 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 54.5 MB. Free memory is still 36.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:54:02,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.50 ms. Allocated memory is still 54.5 MB. Free memory was 30.7 MB in the beginning and 32.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:02,199 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.21 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 30.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:02,199 INFO L168 Benchmark]: Boogie Preprocessor took 32.29 ms. Allocated memory is still 54.5 MB. Free memory was 30.8 MB in the beginning and 29.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:54:02,200 INFO L168 Benchmark]: RCFGBuilder took 519.26 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 29.2 MB in the beginning and 36.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:02,201 INFO L168 Benchmark]: TraceAbstraction took 650.50 ms. Allocated memory is still 69.2 MB. Free memory was 35.7 MB in the beginning and 50.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:02,202 INFO L168 Benchmark]: Witness Printer took 4.31 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 49.8 MB in the end (delta: 356.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:54:02,207 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 54.5 MB. Free memory is still 36.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 386.50 ms. Allocated memory is still 54.5 MB. Free memory was 30.7 MB in the beginning and 32.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.21 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 30.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.29 ms. Allocated memory is still 54.5 MB. Free memory was 30.8 MB in the beginning and 29.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 519.26 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 29.2 MB in the beginning and 36.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 650.50 ms. Allocated memory is still 69.2 MB. Free memory was 35.7 MB in the beginning and 50.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.31 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 49.8 MB in the end (delta: 356.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 108]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 29, overapproximation of bitwiseAnd at line 26, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 107. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = 0.0f; [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L26] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L104] float res = __ieee754_sqrtf(x); [L107] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L107] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L108] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 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=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 0.2.0-2880296 [2020-12-02 15:54:04,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:54:04,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:54:04,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:54:04,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:54:04,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:54:04,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:54:04,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:54:04,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:54:04,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:54:04,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:54:04,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:54:04,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:54:04,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:54:04,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:54:04,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:54:04,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:54:04,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:54:04,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:54:04,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:54:04,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:54:04,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:54:04,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:54:04,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:54:04,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:54:04,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:54:04,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:54:04,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:54:04,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:54:04,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:54:04,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:54:04,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:54:04,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:54:04,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:54:04,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:54:04,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:54:04,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:54:04,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:54:04,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:54:04,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:54:04,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:54:04,720 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:54:04,784 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:54:04,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:54:04,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:54:04,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:54:04,786 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:54:04,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:54:04,787 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:54:04,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:54:04,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:54:04,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:54:04,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:54:04,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:54:04,788 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:54:04,788 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:54:04,789 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:54:04,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:54:04,789 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:54:04,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:54:04,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:54:04,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:54:04,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:54:04,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:54:04,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:54:04,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:54:04,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:54:04,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:54:04,791 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:54:04,791 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:54:04,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:54:04,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:54:04,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:54:04,792 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2020-12-02 15:54:05,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:54:05,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:54:05,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:54:05,214 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:54:05,215 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:54:05,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-12-02 15:54:05,296 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c412c1bc2/9849b431a02a4b8d9d04435f126e4fa8/FLAGbc173e287 [2020-12-02 15:54:05,884 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:54:05,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-12-02 15:54:05,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c412c1bc2/9849b431a02a4b8d9d04435f126e4fa8/FLAGbc173e287 [2020-12-02 15:54:06,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c412c1bc2/9849b431a02a4b8d9d04435f126e4fa8 [2020-12-02 15:54:06,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:54:06,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:54:06,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:54:06,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:54:06,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:54:06,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:54:06" (1/1) ... [2020-12-02 15:54:06,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46b36672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06, skipping insertion in model container [2020-12-02 15:54:06,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:54:06" (1/1) ... [2020-12-02 15:54:06,248 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:54:06,274 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:54:06,495 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c[2069,2082] [2020-12-02 15:54:06,499 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:54:06,516 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:54:06,553 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c[2069,2082] [2020-12-02 15:54:06,554 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:54:06,581 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:54:06,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06 WrapperNode [2020-12-02 15:54:06,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:54:06,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:54:06,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:54:06,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:54:06,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06" (1/1) ... [2020-12-02 15:54:06,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06" (1/1) ... [2020-12-02 15:54:06,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:54:06,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:54:06,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:54:06,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:54:06,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06" (1/1) ... [2020-12-02 15:54:06,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06" (1/1) ... [2020-12-02 15:54:06,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06" (1/1) ... [2020-12-02 15:54:06,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06" (1/1) ... [2020-12-02 15:54:06,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06" (1/1) ... [2020-12-02 15:54:06,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06" (1/1) ... [2020-12-02 15:54:06,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06" (1/1) ... [2020-12-02 15:54:06,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:54:06,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:54:06,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:54:06,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:54:06,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:54:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:54:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:54:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:54:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-02 15:54:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:54:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:54:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:54:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-02 15:54:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 15:54:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:54:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:54:07,887 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:54:07,887 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-02 15:54:07,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:54:07 BoogieIcfgContainer [2020-12-02 15:54:07,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:54:07,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:54:07,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:54:07,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:54:07,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:54:06" (1/3) ... [2020-12-02 15:54:07,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454b58e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:54:07, skipping insertion in model container [2020-12-02 15:54:07,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:54:06" (2/3) ... [2020-12-02 15:54:07,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454b58e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:54:07, skipping insertion in model container [2020-12-02 15:54:07,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:54:07" (3/3) ... [2020-12-02 15:54:07,897 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-12-02 15:54:07,912 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:54:07,916 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:54:07,931 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:54:07,957 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:54:07,958 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:54:07,958 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:54:07,958 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:54:07,958 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:54:07,958 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:54:07,958 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:54:07,958 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:54:07,972 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-02 15:54:07,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 15:54:07,978 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:54:07,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:54:07,979 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:54:07,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:54:07,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-12-02 15:54:08,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:54:08,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637971532] [2020-12-02 15:54:08,004 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 [2020-12-02 15:54:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:54:08,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:54:08,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:54:08,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:54:08,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:54:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:54:08,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637971532] [2020-12-02 15:54:08,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:54:08,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:54:08,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337425414] [2020-12-02 15:54:08,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:54:08,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:54:08,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:54:08,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:54:08,306 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-02 15:54:08,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:54:08,331 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2020-12-02 15:54:08,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:54:08,332 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-02 15:54:08,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:54:08,342 INFO L225 Difference]: With dead ends: 72 [2020-12-02 15:54:08,343 INFO L226 Difference]: Without dead ends: 34 [2020-12-02 15:54:08,346 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 [2020-12-02 15:54:08,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-02 15:54:08,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-02 15:54:08,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-02 15:54:08,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-12-02 15:54:08,383 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-12-02 15:54:08,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:54:08,384 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-12-02 15:54:08,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:54:08,384 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-12-02 15:54:08,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 15:54:08,385 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:54:08,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:54:08,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:54:08,599 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:54:08,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:54:08,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-12-02 15:54:08,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:54:08,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926341415] [2020-12-02 15:54:08,606 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 [2020-12-02 15:54:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:54:08,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-02 15:54:08,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:54:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:54:08,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:54:09,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:54:09,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926341415] [2020-12-02 15:54:09,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:54:09,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-02 15:54:09,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410154525] [2020-12-02 15:54:09,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-02 15:54:09,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:54:09,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-02 15:54:09,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-02 15:54:09,089 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-12-02 15:54:09,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:54:09,187 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-12-02 15:54:09,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 15:54:09,188 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-12-02 15:54:09,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:54:09,189 INFO L225 Difference]: With dead ends: 43 [2020-12-02 15:54:09,189 INFO L226 Difference]: Without dead ends: 16 [2020-12-02 15:54:09,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-02 15:54:09,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-02 15:54:09,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-02 15:54:09,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-02 15:54:09,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-02 15:54:09,195 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2020-12-02 15:54:09,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:54:09,195 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-02 15:54:09,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-02 15:54:09,195 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-02 15:54:09,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 15:54:09,196 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:54:09,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:54:09,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:54:09,411 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:54:09,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:54:09,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2020-12-02 15:54:09,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:54:09,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750118831] [2020-12-02 15:54:09,414 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 [2020-12-02 15:54:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:54:09,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-02 15:54:09,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:54:09,632 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:54:09,647 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:54:09,651 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-02 15:54:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:54:09,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:54:09,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:54:09,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750118831] [2020-12-02 15:54:09,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:54:09,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-12-02 15:54:09,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277992970] [2020-12-02 15:54:09,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-02 15:54:09,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:54:09,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-02 15:54:09,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-02 15:54:09,814 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2020-12-02 15:54:09,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:54:09,897 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-12-02 15:54:09,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 15:54:09,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-12-02 15:54:09,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:54:09,898 INFO L225 Difference]: With dead ends: 19 [2020-12-02 15:54:09,899 INFO L226 Difference]: Without dead ends: 16 [2020-12-02 15:54:09,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-02 15:54:09,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-02 15:54:09,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-02 15:54:09,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-02 15:54:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-12-02 15:54:09,908 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-12-02 15:54:09,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:54:09,909 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-12-02 15:54:09,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-02 15:54:09,909 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-12-02 15:54:09,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-02 15:54:09,910 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:54:09,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:54:10,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 15:54:10,125 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:54:10,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:54:10,127 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2020-12-02 15:54:10,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:54:10,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293229620] [2020-12-02 15:54:10,128 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 [2020-12-02 15:54:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:54:10,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-02 15:54:10,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:54:10,448 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:54:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:54:10,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:54:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:54:10,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293229620] [2020-12-02 15:54:10,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:54:10,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-12-02 15:54:10,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336826649] [2020-12-02 15:54:10,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-02 15:54:10,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:54:10,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-02 15:54:10,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-12-02 15:54:10,774 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 14 states. [2020-12-02 15:54:11,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:54:11,092 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-12-02 15:54:11,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 15:54:11,093 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-12-02 15:54:11,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:54:11,094 INFO L225 Difference]: With dead ends: 16 [2020-12-02 15:54:11,094 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 15:54:11,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-12-02 15:54:11,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 15:54:11,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 15:54:11,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 15:54:11,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 15:54:11,095 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-02 15:54:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:54:11,096 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 15:54:11,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-02 15:54:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 15:54:11,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 15:54:11,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-02 15:54:11,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 15:54:11,509 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2020-12-02 15:54:11,509 INFO L262 CegarLoopResult]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2020-12-02 15:54:11,510 INFO L262 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-12-02 15:54:11,510 INFO L262 CegarLoopResult]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2020-12-02 15:54:11,510 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 15:54:11,510 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 15:54:11,510 INFO L262 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-12-02 15:54:11,510 INFO L262 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-12-02 15:54:11,511 INFO L258 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short27| (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~x) ((_ extract 30 23) ULTIMATE.start___signbit_float_~x) ((_ extract 22 0) ULTIMATE.start___signbit_float_~x))) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~x)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_sqrtf_#res|) ((_ extract 30 23) |ULTIMATE.start___ieee754_sqrtf_#res|) ((_ extract 22 0) |ULTIMATE.start___ieee754_sqrtf_#res|)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start_main_~res~0) ((_ extract 30 23) ULTIMATE.start_main_~res~0) ((_ extract 22 0) ULTIMATE.start_main_~res~0)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2020-12-02 15:54:11,511 INFO L262 CegarLoopResult]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2020-12-02 15:54:11,511 INFO L262 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2020-12-02 15:54:11,511 INFO L262 CegarLoopResult]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2020-12-02 15:54:11,511 INFO L262 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2020-12-02 15:54:11,511 INFO L262 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-12-02 15:54:11,511 INFO L262 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2020-12-02 15:54:11,512 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~x)) (_ +zero 8 24)) [2020-12-02 15:54:11,512 INFO L262 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2020-12-02 15:54:11,512 INFO L265 CegarLoopResult]: At program point L112(lines 95 113) the Hoare annotation is: true [2020-12-02 15:54:11,512 INFO L262 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2020-12-02 15:54:11,512 INFO L258 CegarLoopResult]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2020-12-02 15:54:11,512 INFO L262 CegarLoopResult]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2020-12-02 15:54:11,512 INFO L262 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-12-02 15:54:11,513 INFO L258 CegarLoopResult]: At program point L80(lines 16 81) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~x)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_sqrtf_#res|) ((_ extract 30 23) |ULTIMATE.start___ieee754_sqrtf_#res|) ((_ extract 22 0) |ULTIMATE.start___ieee754_sqrtf_#res|)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2020-12-02 15:54:11,513 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-12-02 15:54:11,513 INFO L262 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2020-12-02 15:54:11,513 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 15:54:11,513 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2020-12-02 15:54:11,513 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-02 15:54:11,514 INFO L262 CegarLoopResult]: For program point L107-2(lines 107 110) no Hoare annotation was computed. [2020-12-02 15:54:11,514 INFO L262 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-12-02 15:54:11,514 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 15:54:11,514 INFO L262 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-12-02 15:54:11,514 INFO L262 CegarLoopResult]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2020-12-02 15:54:11,514 INFO L258 CegarLoopResult]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2020-12-02 15:54:11,514 INFO L262 CegarLoopResult]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2020-12-02 15:54:11,515 INFO L262 CegarLoopResult]: For program point L67(lines 67 70) no Hoare annotation was computed. [2020-12-02 15:54:11,515 INFO L258 CegarLoopResult]: At program point L92(lines 83 93) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short27| (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~x) ((_ extract 30 23) ULTIMATE.start___signbit_float_~x) ((_ extract 22 0) ULTIMATE.start___signbit_float_~x))) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~x) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~x)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_sqrtf_#res|) ((_ extract 30 23) |ULTIMATE.start___ieee754_sqrtf_#res|) ((_ extract 22 0) |ULTIMATE.start___ieee754_sqrtf_#res|)) (_ +zero 8 24)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (fp ((_ extract 31 31) ULTIMATE.start_main_~res~0) ((_ extract 30 23) ULTIMATE.start_main_~res~0) ((_ extract 22 0) ULTIMATE.start_main_~res~0)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2020-12-02 15:54:11,523 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,532 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,532 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,532 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,532 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,534 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,534 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,535 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,535 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,538 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,541 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:54:11 BoogieIcfgContainer [2020-12-02 15:54:11,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:54:11,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:54:11,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:54:11,544 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:54:11,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:54:07" (3/4) ... [2020-12-02 15:54:11,548 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 15:54:11,561 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-02 15:54:11,561 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-02 15:54:11,562 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 15:54:11,562 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 15:54:11,592 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-12-02 15:54:11,593 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(res[31:31], res[30:23], res[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-12-02 15:54:11,594 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~fp~LONGDOUBLE(res[31:31], res[30:23], res[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-12-02 15:54:11,633 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 15:54:11,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:54:11,635 INFO L168 Benchmark]: Toolchain (without parser) took 5416.14 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 25.4 MB in the beginning and 30.6 MB in the end (delta: -5.2 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:11,636 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 48.2 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 23.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:54:11,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.32 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 24.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:11,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.11 ms. Allocated memory is still 48.2 MB. Free memory was 24.0 MB in the beginning and 22.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:11,638 INFO L168 Benchmark]: Boogie Preprocessor took 75.55 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 21.9 MB in the beginning and 42.2 MB in the end (delta: -20.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:11,638 INFO L168 Benchmark]: RCFGBuilder took 1177.24 ms. Allocated memory is still 58.7 MB. Free memory was 42.0 MB in the beginning and 32.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:11,639 INFO L168 Benchmark]: TraceAbstraction took 3652.58 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 31.7 MB in the beginning and 34.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:11,640 INFO L168 Benchmark]: Witness Printer took 89.62 ms. Allocated memory is still 71.3 MB. Free memory was 34.7 MB in the beginning and 30.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:54:11,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 48.2 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 23.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 359.32 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 24.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.11 ms. Allocated memory is still 48.2 MB. Free memory was 24.0 MB in the beginning and 22.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.55 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 21.9 MB in the beginning and 42.2 MB in the end (delta: -20.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1177.24 ms. Allocated memory is still 58.7 MB. Free memory was 42.0 MB in the beginning and 32.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3652.58 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 31.7 MB in the beginning and 34.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Witness Printer took 89.62 ms. Allocated memory is still 71.3 MB. Free memory was 34.7 MB in the beginning and 30.6 MB in the end (delta: 4.2 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 108]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant [2020-12-02 15:54:11,652 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,652 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 83]: Loop Invariant [2020-12-02 15:54:11,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~fp~LONGDOUBLE(res[31:31], res[30:23], res[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant [2020-12-02 15:54:11,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,659 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,659 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,659 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-02 15:54:11,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(res[31:31], res[30:23], res[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 114 SDslu, 55 SDs, 0 SdLazy, 51 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 195 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 7 QuantifiedInterpolants, 5135 SizeOfPredicates, 21 NumberOfNonLiveVariables, 194 ConjunctsInSsa, 27 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...