./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c78f6baa30553ee1ef9e5dd79b3fe49457cbaef .......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c78f6baa30553ee1ef9e5dd79b3fe49457cbaef ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:42:18,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:42:18,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:42:18,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:42:18,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:42:18,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:42:18,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:42:18,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:42:18,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:42:18,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:42:18,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:42:18,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:42:18,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:42:18,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:42:18,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:42:18,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:42:18,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:42:18,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:42:18,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:42:18,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:42:19,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:42:19,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:42:19,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:42:19,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:42:19,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:42:19,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:42:19,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:42:19,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:42:19,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:42:19,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:42:19,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:42:19,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:42:19,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:42:19,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:42:19,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:42:19,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:42:19,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:42:19,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:42:19,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:42:19,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:42:19,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:42:19,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:42:19,058 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:42:19,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:42:19,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:42:19,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:42:19,060 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:42:19,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:42:19,061 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:42:19,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:42:19,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:42:19,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:42:19,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:42:19,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:42:19,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:42:19,064 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:42:19,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:42:19,065 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:42:19,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:42:19,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:42:19,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:42:19,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:42:19,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:42:19,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:42:19,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:42:19,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:42:19,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:42:19,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:42:19,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:42:19,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:42:19,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:42:19,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c78f6baa30553ee1ef9e5dd79b3fe49457cbaef [2020-07-28 17:42:19,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:42:19,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:42:19,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:42:19,392 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:42:19,393 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:42:19,394 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c [2020-07-28 17:42:19,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fede9e4b/a81485ebd0d54e31b46840a66fa4f6ca/FLAGa48b3f811 [2020-07-28 17:42:19,924 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:42:19,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052a.c [2020-07-28 17:42:19,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fede9e4b/a81485ebd0d54e31b46840a66fa4f6ca/FLAGa48b3f811 [2020-07-28 17:42:20,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fede9e4b/a81485ebd0d54e31b46840a66fa4f6ca [2020-07-28 17:42:20,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:42:20,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:42:20,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:42:20,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:42:20,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:42:20,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:42:20" (1/1) ... [2020-07-28 17:42:20,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e36423d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20, skipping insertion in model container [2020-07-28 17:42:20,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:42:20" (1/1) ... [2020-07-28 17:42:20,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:42:20,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:42:20,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:42:20,571 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:42:20,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:42:20,710 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:42:20,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20 WrapperNode [2020-07-28 17:42:20,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:42:20,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:42:20,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:42:20,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:42:20,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20" (1/1) ... [2020-07-28 17:42:20,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20" (1/1) ... [2020-07-28 17:42:20,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:42:20,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:42:20,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:42:20,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:42:20,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20" (1/1) ... [2020-07-28 17:42:20,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20" (1/1) ... [2020-07-28 17:42:20,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20" (1/1) ... [2020-07-28 17:42:20,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20" (1/1) ... [2020-07-28 17:42:20,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20" (1/1) ... [2020-07-28 17:42:20,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20" (1/1) ... [2020-07-28 17:42:20,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20" (1/1) ... [2020-07-28 17:42:20,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:42:20,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:42:20,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:42:20,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:42:20,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20" (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 [2020-07-28 17:42:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:42:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:42:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:42:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:42:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:42:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:42:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:42:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:42:21,558 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:42:21,559 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:42:21,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:42:21 BoogieIcfgContainer [2020-07-28 17:42:21,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:42:21,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:42:21,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:42:21,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:42:21,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:42:20" (1/3) ... [2020-07-28 17:42:21,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3c2139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:42:21, skipping insertion in model container [2020-07-28 17:42:21,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:20" (2/3) ... [2020-07-28 17:42:21,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3c2139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:42:21, skipping insertion in model container [2020-07-28 17:42:21,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:42:21" (3/3) ... [2020-07-28 17:42:21,571 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052a.c [2020-07-28 17:42:21,582 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:42:21,590 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:42:21,605 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:42:21,629 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:42:21,629 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:42:21,630 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:42:21,630 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:42:21,630 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:42:21,630 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:42:21,630 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:42:21,631 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:42:21,647 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-28 17:42:21,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 17:42:21,654 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:42:21,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:42:21,656 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:42:21,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:42:21,662 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-07-28 17:42:21,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:42:21,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023464153] [2020-07-28 17:42:21,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:42:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:42:21,807 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~huge_floor~0 := 1.0E300; {40#true} is VALID [2020-07-28 17:42:21,808 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~someBinaryArithmeticDOUBLEoperation(1.0, 0.0);floor_double_#in~x := main_~x~0;havoc floor_double_#res;havoc floor_double_#t~mem0, floor_double_#t~union1, floor_double_#t~mem2, floor_double_#t~union3, floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, floor_double_#t~mem4, floor_double_#t~union5.lsw, floor_double_#t~union5.msw, floor_double_~#iw_u~0.base, floor_double_~#iw_u~0.offset, floor_double_~x, floor_double_~i0~0, floor_double_~i1~0, floor_double_~j0~0, floor_double_~i~0, floor_double_~j~0;floor_double_~x := floor_double_#in~x;havoc floor_double_~i0~0;havoc floor_double_~i1~0;havoc floor_double_~j0~0;havoc floor_double_~i~0;havoc floor_double_~j~0; {40#true} is VALID [2020-07-28 17:42:21,809 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume !true; {41#false} is VALID [2020-07-28 17:42:21,809 INFO L280 TraceCheckUtils]: 3: Hoare triple {41#false} floor_double_~j0~0 := ~bitwiseAnd(floor_double_~i0~0 / 1048576, 2047) - 1023; {41#false} is VALID [2020-07-28 17:42:21,810 INFO L280 TraceCheckUtils]: 4: Hoare triple {41#false} assume floor_double_~j0~0 < 20; {41#false} is VALID [2020-07-28 17:42:21,810 INFO L280 TraceCheckUtils]: 5: Hoare triple {41#false} assume !(floor_double_~j0~0 < 0);floor_double_~i~0 := ~shiftRight(1048575, floor_double_~j0~0); {41#false} is VALID [2020-07-28 17:42:21,811 INFO L280 TraceCheckUtils]: 6: Hoare triple {41#false} assume 0 == ~bitwiseOr(~bitwiseAnd(floor_double_~i0~0, floor_double_~i~0), floor_double_~i1~0) % 4294967296;floor_double_#res := floor_double_~x; {41#false} is VALID [2020-07-28 17:42:21,811 INFO L280 TraceCheckUtils]: 7: Hoare triple {41#false} main_#t~ret10 := floor_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem6, isinf_double_#t~union7, isinf_double_#t~mem8, isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {41#false} is VALID [2020-07-28 17:42:21,812 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#false} assume !true; {41#false} is VALID [2020-07-28 17:42:21,812 INFO L280 TraceCheckUtils]: 9: Hoare triple {41#false} isinf_double_~hx~0 := ~bitwiseAnd(isinf_double_~hx~0, 2147483647);isinf_double_~hx~0 := (if ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 - 4294967296);isinf_double_~hx~0 := 2146435072 - isinf_double_~hx~0;isinf_double_#res := 1 - (if ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 - 4294967296); {41#false} is VALID [2020-07-28 17:42:21,812 INFO L280 TraceCheckUtils]: 10: Hoare triple {41#false} main_#t~ret11 := isinf_double_#res;assume -2147483648 <= main_#t~ret11 && main_#t~ret11 <= 2147483647; {41#false} is VALID [2020-07-28 17:42:21,813 INFO L280 TraceCheckUtils]: 11: Hoare triple {41#false} assume 0 == main_#t~ret11;havoc main_#t~ret11; {41#false} is VALID [2020-07-28 17:42:21,813 INFO L280 TraceCheckUtils]: 12: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-28 17:42:21,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:42:21,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023464153] [2020-07-28 17:42:21,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:42:21,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:42:21,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139309147] [2020-07-28 17:42:21,827 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-28 17:42:21,829 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:42:21,833 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:42:21,867 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:42:21,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:42:21,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:42:21,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:42:21,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:42:21,880 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-07-28 17:42:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:42:21,973 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2020-07-28 17:42:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:42:21,974 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-28 17:42:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:42:21,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:42:21,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2020-07-28 17:42:21,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:42:21,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2020-07-28 17:42:21,990 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 114 transitions. [2020-07-28 17:42:22,165 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 114 edges. 114 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:42:22,179 INFO L225 Difference]: With dead ends: 72 [2020-07-28 17:42:22,179 INFO L226 Difference]: Without dead ends: 34 [2020-07-28 17:42:22,183 INFO L675 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 [2020-07-28 17:42:22,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-28 17:42:22,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-07-28 17:42:22,220 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:42:22,221 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 34 states. [2020-07-28 17:42:22,221 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:42:22,221 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:42:22,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:42:22,226 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2020-07-28 17:42:22,226 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:42:22,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:42:22,227 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:42:22,227 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:42:22,228 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:42:22,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:42:22,231 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2020-07-28 17:42:22,232 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:42:22,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:42:22,233 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:42:22,233 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:42:22,233 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:42:22,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-28 17:42:22,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-07-28 17:42:22,238 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-07-28 17:42:22,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:42:22,238 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-07-28 17:42:22,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:42:22,239 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:42:22,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 17:42:22,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:42:22,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:42:22,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:42:22,241 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:42:22,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:42:22,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-07-28 17:42:22,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:42:22,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774247326] [2020-07-28 17:42:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:42:22,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:42:22,452 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 17:42:22,463 INFO L168 Benchmark]: Toolchain (without parser) took 2150.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 956.2 MB in the beginning and 1.0 GB in the end (delta: -72.8 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:42:22,464 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:42:22,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:42:22,465 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:42:22,466 INFO L168 Benchmark]: Boogie Preprocessor took 39.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:42:22,467 INFO L168 Benchmark]: RCFGBuilder took 739.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:42:22,468 INFO L168 Benchmark]: TraceAbstraction took 895.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:42:22,472 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 396.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 739.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 895.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:42:24,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:42:24,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:42:24,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:42:24,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:42:24,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:42:24,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:42:24,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:42:24,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:42:24,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:42:24,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:42:24,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:42:24,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:42:24,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:42:24,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:42:24,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:42:24,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:42:24,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:42:24,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:42:24,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:42:24,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:42:24,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:42:24,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:42:24,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:42:24,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:42:24,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:42:24,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:42:24,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:42:24,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:42:24,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:42:24,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:42:24,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:42:24,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:42:24,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:42:24,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:42:24,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:42:24,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:42:24,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:42:24,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:42:24,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:42:24,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:42:24,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:42:24,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:42:24,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:42:24,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:42:24,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:42:24,522 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:42:24,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:42:24,522 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:42:24,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:42:24,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:42:24,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:42:24,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:42:24,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:42:24,525 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:42:24,526 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:42:24,526 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:42:24,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:42:24,526 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:42:24,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:42:24,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:42:24,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:42:24,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:42:24,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:42:24,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:42:24,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:42:24,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:42:24,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:42:24,529 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:42:24,529 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:42:24,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:42:24,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:42:24,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:42:24,531 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c78f6baa30553ee1ef9e5dd79b3fe49457cbaef [2020-07-28 17:42:24,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:42:24,854 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:42:24,858 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:42:24,859 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:42:24,860 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:42:24,861 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c [2020-07-28 17:42:24,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad6bcd0d/61f07cf9873644938310a56f6cc30e6e/FLAG93ccb8ae5 [2020-07-28 17:42:25,431 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:42:25,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052a.c [2020-07-28 17:42:25,439 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad6bcd0d/61f07cf9873644938310a56f6cc30e6e/FLAG93ccb8ae5 [2020-07-28 17:42:25,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad6bcd0d/61f07cf9873644938310a56f6cc30e6e [2020-07-28 17:42:25,831 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:42:25,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:42:25,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:42:25,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:42:25,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:42:25,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:42:25" (1/1) ... [2020-07-28 17:42:25,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51cd7231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:25, skipping insertion in model container [2020-07-28 17:42:25,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:42:25" (1/1) ... [2020-07-28 17:42:25,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:42:25,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:42:26,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:42:26,114 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:42:26,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:42:26,274 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:42:26,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26 WrapperNode [2020-07-28 17:42:26,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:42:26,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:42:26,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:42:26,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:42:26,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26" (1/1) ... [2020-07-28 17:42:26,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26" (1/1) ... [2020-07-28 17:42:26,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:42:26,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:42:26,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:42:26,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:42:26,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26" (1/1) ... [2020-07-28 17:42:26,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26" (1/1) ... [2020-07-28 17:42:26,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26" (1/1) ... [2020-07-28 17:42:26,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26" (1/1) ... [2020-07-28 17:42:26,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26" (1/1) ... [2020-07-28 17:42:26,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26" (1/1) ... [2020-07-28 17:42:26,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26" (1/1) ... [2020-07-28 17:42:26,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:42:26,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:42:26,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:42:26,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:42:26,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26" (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 [2020-07-28 17:42:26,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-07-28 17:42:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-07-28 17:42:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:42:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:42:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:42:26,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:42:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:42:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:42:27,983 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:42:27,984 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:42:27,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:42:27 BoogieIcfgContainer [2020-07-28 17:42:27,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:42:27,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:42:27,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:42:27,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:42:27,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:42:25" (1/3) ... [2020-07-28 17:42:27,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc2528f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:42:27, skipping insertion in model container [2020-07-28 17:42:27,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:42:26" (2/3) ... [2020-07-28 17:42:27,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc2528f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:42:27, skipping insertion in model container [2020-07-28 17:42:27,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:42:27" (3/3) ... [2020-07-28 17:42:27,996 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052a.c [2020-07-28 17:42:28,004 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:42:28,011 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:42:28,022 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:42:28,044 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:42:28,044 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:42:28,044 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:42:28,044 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:42:28,045 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:42:28,045 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:42:28,045 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:42:28,045 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:42:28,059 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-28 17:42:28,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 17:42:28,066 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:42:28,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:42:28,067 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:42:28,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:42:28,074 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-07-28 17:42:28,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:42:28,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759253235] [2020-07-28 17:42:28,087 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 [2020-07-28 17:42:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:42:28,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:42:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:42:28,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:42:28,248 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_floor~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300); {40#true} is VALID [2020-07-28 17:42:28,249 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());floor_double_#in~x := main_~x~0;havoc floor_double_#res;havoc floor_double_#t~mem0, floor_double_#t~union1, floor_double_#t~mem2, floor_double_#t~union3, floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, floor_double_#t~mem4, floor_double_#t~union5.lsw, floor_double_#t~union5.msw, floor_double_~#iw_u~0.base, floor_double_~#iw_u~0.offset, floor_double_~x, floor_double_~i0~0, floor_double_~i1~0, floor_double_~j0~0, floor_double_~i~0, floor_double_~j~0;floor_double_~x := floor_double_#in~x;havoc floor_double_~i0~0;havoc floor_double_~i1~0;havoc floor_double_~j0~0;havoc floor_double_~i~0;havoc floor_double_~j~0; {40#true} is VALID [2020-07-28 17:42:28,250 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume !true; {41#false} is VALID [2020-07-28 17:42:28,251 INFO L280 TraceCheckUtils]: 3: Hoare triple {41#false} floor_double_~j0~0 := ~bvsub32(~bvand32(2047bv32, ~bvashr32(floor_double_~i0~0, 20bv32)), 1023bv32); {41#false} is VALID [2020-07-28 17:42:28,251 INFO L280 TraceCheckUtils]: 4: Hoare triple {41#false} assume ~bvslt32(floor_double_~j0~0, 20bv32); {41#false} is VALID [2020-07-28 17:42:28,251 INFO L280 TraceCheckUtils]: 5: Hoare triple {41#false} assume !~bvslt32(floor_double_~j0~0, 0bv32);floor_double_~i~0 := ~bvashr32(1048575bv32, floor_double_~j0~0); {41#false} is VALID [2020-07-28 17:42:28,252 INFO L280 TraceCheckUtils]: 6: Hoare triple {41#false} assume 0bv32 == ~bvor32(~bvand32(floor_double_~i0~0, floor_double_~i~0), floor_double_~i1~0);floor_double_#res := floor_double_~x; {41#false} is VALID [2020-07-28 17:42:28,252 INFO L280 TraceCheckUtils]: 7: Hoare triple {41#false} main_#t~ret10 := floor_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem6, isinf_double_#t~union7, isinf_double_#t~mem8, isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {41#false} is VALID [2020-07-28 17:42:28,252 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#false} assume !true; {41#false} is VALID [2020-07-28 17:42:28,252 INFO L280 TraceCheckUtils]: 9: Hoare triple {41#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {41#false} is VALID [2020-07-28 17:42:28,253 INFO L280 TraceCheckUtils]: 10: Hoare triple {41#false} main_#t~ret11 := isinf_double_#res; {41#false} is VALID [2020-07-28 17:42:28,253 INFO L280 TraceCheckUtils]: 11: Hoare triple {41#false} assume 0bv32 == main_#t~ret11;havoc main_#t~ret11; {41#false} is VALID [2020-07-28 17:42:28,253 INFO L280 TraceCheckUtils]: 12: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-28 17:42:28,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:42:28,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:42:28,281 INFO L280 TraceCheckUtils]: 12: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-28 17:42:28,281 INFO L280 TraceCheckUtils]: 11: Hoare triple {41#false} assume 0bv32 == main_#t~ret11;havoc main_#t~ret11; {41#false} is VALID [2020-07-28 17:42:28,282 INFO L280 TraceCheckUtils]: 10: Hoare triple {41#false} main_#t~ret11 := isinf_double_#res; {41#false} is VALID [2020-07-28 17:42:28,282 INFO L280 TraceCheckUtils]: 9: Hoare triple {41#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {41#false} is VALID [2020-07-28 17:42:28,283 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#false} assume !true; {41#false} is VALID [2020-07-28 17:42:28,283 INFO L280 TraceCheckUtils]: 7: Hoare triple {41#false} main_#t~ret10 := floor_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem6, isinf_double_#t~union7, isinf_double_#t~mem8, isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {41#false} is VALID [2020-07-28 17:42:28,284 INFO L280 TraceCheckUtils]: 6: Hoare triple {41#false} assume 0bv32 == ~bvor32(~bvand32(floor_double_~i0~0, floor_double_~i~0), floor_double_~i1~0);floor_double_#res := floor_double_~x; {41#false} is VALID [2020-07-28 17:42:28,284 INFO L280 TraceCheckUtils]: 5: Hoare triple {41#false} assume !~bvslt32(floor_double_~j0~0, 0bv32);floor_double_~i~0 := ~bvashr32(1048575bv32, floor_double_~j0~0); {41#false} is VALID [2020-07-28 17:42:28,284 INFO L280 TraceCheckUtils]: 4: Hoare triple {41#false} assume ~bvslt32(floor_double_~j0~0, 20bv32); {41#false} is VALID [2020-07-28 17:42:28,284 INFO L280 TraceCheckUtils]: 3: Hoare triple {41#false} floor_double_~j0~0 := ~bvsub32(~bvand32(2047bv32, ~bvashr32(floor_double_~i0~0, 20bv32)), 1023bv32); {41#false} is VALID [2020-07-28 17:42:28,286 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume !true; {41#false} is VALID [2020-07-28 17:42:28,286 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());floor_double_#in~x := main_~x~0;havoc floor_double_#res;havoc floor_double_#t~mem0, floor_double_#t~union1, floor_double_#t~mem2, floor_double_#t~union3, floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, floor_double_#t~mem4, floor_double_#t~union5.lsw, floor_double_#t~union5.msw, floor_double_~#iw_u~0.base, floor_double_~#iw_u~0.offset, floor_double_~x, floor_double_~i0~0, floor_double_~i1~0, floor_double_~j0~0, floor_double_~i~0, floor_double_~j~0;floor_double_~x := floor_double_#in~x;havoc floor_double_~i0~0;havoc floor_double_~i1~0;havoc floor_double_~j0~0;havoc floor_double_~i~0;havoc floor_double_~j~0; {40#true} is VALID [2020-07-28 17:42:28,286 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_floor~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300); {40#true} is VALID [2020-07-28 17:42:28,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:42:28,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759253235] [2020-07-28 17:42:28,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:42:28,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:42:28,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674501146] [2020-07-28 17:42:28,296 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-28 17:42:28,298 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:42:28,302 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:42:28,336 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:42:28,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:42:28,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:42:28,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:42:28,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:42:28,349 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-07-28 17:42:29,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:42:29,257 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2020-07-28 17:42:29,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:42:29,257 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-28 17:42:29,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:42:29,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:42:29,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2020-07-28 17:42:29,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:42:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2020-07-28 17:42:29,275 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 114 transitions. [2020-07-28 17:42:29,946 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 114 edges. 114 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:42:29,959 INFO L225 Difference]: With dead ends: 72 [2020-07-28 17:42:29,960 INFO L226 Difference]: Without dead ends: 34 [2020-07-28 17:42:29,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:42:29,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-28 17:42:30,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-07-28 17:42:30,002 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:42:30,003 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 34 states. [2020-07-28 17:42:30,003 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:42:30,004 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:42:30,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:42:30,009 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2020-07-28 17:42:30,010 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:42:30,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:42:30,011 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:42:30,011 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:42:30,012 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:42:30,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:42:30,016 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2020-07-28 17:42:30,016 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:42:30,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:42:30,018 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:42:30,018 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:42:30,018 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:42:30,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-28 17:42:30,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-07-28 17:42:30,023 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-07-28 17:42:30,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:42:30,024 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-07-28 17:42:30,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:42:30,025 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:42:30,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 17:42:30,026 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:42:30,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:42:30,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:42:30,242 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:42:30,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:42:30,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-07-28 17:42:30,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:42:30,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296113865] [2020-07-28 17:42:30,246 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 [2020-07-28 17:42:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:42:30,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-28 17:42:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:42:30,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:42:30,643 INFO L280 TraceCheckUtils]: 0: Hoare triple {304#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_floor~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300); {304#true} is VALID [2020-07-28 17:42:30,648 INFO L280 TraceCheckUtils]: 1: Hoare triple {304#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());floor_double_#in~x := main_~x~0;havoc floor_double_#res;havoc floor_double_#t~mem0, floor_double_#t~union1, floor_double_#t~mem2, floor_double_#t~union3, floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, floor_double_#t~mem4, floor_double_#t~union5.lsw, floor_double_#t~union5.msw, floor_double_~#iw_u~0.base, floor_double_~#iw_u~0.offset, floor_double_~x, floor_double_~i0~0, floor_double_~i1~0, floor_double_~j0~0, floor_double_~i~0, floor_double_~j~0;floor_double_~x := floor_double_#in~x;havoc floor_double_~i0~0;havoc floor_double_~i1~0;havoc floor_double_~j0~0;havoc floor_double_~i~0;havoc floor_double_~j~0; {312#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)) ULTIMATE.start_floor_double_~x))} is VALID [2020-07-28 17:42:30,656 INFO L280 TraceCheckUtils]: 2: Hoare triple {312#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)) ULTIMATE.start_floor_double_~x))} call floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(floor_double_~x, floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, 8bv32);call floor_double_#t~mem0 := read~intINTTYPE4(floor_double_~#ew_u~0.base, ~bvadd32(4bv32, floor_double_~#ew_u~0.offset), 4bv32);floor_double_~i0~0 := floor_double_#t~mem0;call write~intFLOATTYPE8(floor_double_#t~union1, floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, 8bv32);havoc floor_double_#t~union1;havoc floor_double_#t~mem0;call floor_double_#t~mem2 := read~intINTTYPE4(floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, 4bv32);floor_double_~i1~0 := floor_double_#t~mem2;call write~intFLOATTYPE8(floor_double_#t~union3, floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, 8bv32);havoc floor_double_#t~union3;havoc floor_double_#t~mem2;call ULTIMATE.dealloc(floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset);havoc floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset; {316#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start_floor_double_~i0~0)))} is VALID [2020-07-28 17:42:30,657 INFO L280 TraceCheckUtils]: 3: Hoare triple {316#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start_floor_double_~i0~0)))} goto; {316#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start_floor_double_~i0~0)))} is VALID [2020-07-28 17:42:30,663 INFO L280 TraceCheckUtils]: 4: Hoare triple {316#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start_floor_double_~i0~0)))} floor_double_~j0~0 := ~bvsub32(~bvand32(2047bv32, ~bvashr32(floor_double_~i0~0, 20bv32)), 1023bv32); {323#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= (bvadd ULTIMATE.start_floor_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32))))))} is VALID [2020-07-28 17:42:30,667 INFO L280 TraceCheckUtils]: 5: Hoare triple {323#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= (bvadd ULTIMATE.start_floor_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32))))))} assume ~bvslt32(floor_double_~j0~0, 20bv32); {305#false} is VALID [2020-07-28 17:42:30,667 INFO L280 TraceCheckUtils]: 6: Hoare triple {305#false} assume !~bvslt32(floor_double_~j0~0, 0bv32);floor_double_~i~0 := ~bvashr32(1048575bv32, floor_double_~j0~0); {305#false} is VALID [2020-07-28 17:42:30,668 INFO L280 TraceCheckUtils]: 7: Hoare triple {305#false} assume 0bv32 == ~bvor32(~bvand32(floor_double_~i0~0, floor_double_~i~0), floor_double_~i1~0);floor_double_#res := floor_double_~x; {305#false} is VALID [2020-07-28 17:42:30,668 INFO L280 TraceCheckUtils]: 8: Hoare triple {305#false} main_#t~ret10 := floor_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem6, isinf_double_#t~union7, isinf_double_#t~mem8, isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {305#false} is VALID [2020-07-28 17:42:30,668 INFO L280 TraceCheckUtils]: 9: Hoare triple {305#false} call isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(isinf_double_~x, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);call isinf_double_#t~mem6 := read~intINTTYPE4(isinf_double_~#ew_u~1.base, ~bvadd32(4bv32, isinf_double_~#ew_u~1.offset), 4bv32);isinf_double_~hx~0 := isinf_double_#t~mem6;call write~intFLOATTYPE8(isinf_double_#t~union7, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);havoc isinf_double_#t~mem6;havoc isinf_double_#t~union7;call isinf_double_#t~mem8 := read~intINTTYPE4(isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 4bv32);isinf_double_~lx~0 := isinf_double_#t~mem8;call write~intFLOATTYPE8(isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);havoc isinf_double_#t~mem8;havoc isinf_double_#t~union9;call ULTIMATE.dealloc(isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset);havoc isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset; {305#false} is VALID [2020-07-28 17:42:30,669 INFO L280 TraceCheckUtils]: 10: Hoare triple {305#false} goto; {305#false} is VALID [2020-07-28 17:42:30,669 INFO L280 TraceCheckUtils]: 11: Hoare triple {305#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {305#false} is VALID [2020-07-28 17:42:30,669 INFO L280 TraceCheckUtils]: 12: Hoare triple {305#false} main_#t~ret11 := isinf_double_#res; {305#false} is VALID [2020-07-28 17:42:30,670 INFO L280 TraceCheckUtils]: 13: Hoare triple {305#false} assume 0bv32 == main_#t~ret11;havoc main_#t~ret11; {305#false} is VALID [2020-07-28 17:42:30,670 INFO L280 TraceCheckUtils]: 14: Hoare triple {305#false} assume !false; {305#false} is VALID [2020-07-28 17:42:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:42:30,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:42:30,936 INFO L280 TraceCheckUtils]: 14: Hoare triple {305#false} assume !false; {305#false} is VALID [2020-07-28 17:42:30,936 INFO L280 TraceCheckUtils]: 13: Hoare triple {305#false} assume 0bv32 == main_#t~ret11;havoc main_#t~ret11; {305#false} is VALID [2020-07-28 17:42:30,936 INFO L280 TraceCheckUtils]: 12: Hoare triple {305#false} main_#t~ret11 := isinf_double_#res; {305#false} is VALID [2020-07-28 17:42:30,937 INFO L280 TraceCheckUtils]: 11: Hoare triple {305#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {305#false} is VALID [2020-07-28 17:42:30,937 INFO L280 TraceCheckUtils]: 10: Hoare triple {305#false} goto; {305#false} is VALID [2020-07-28 17:42:30,938 INFO L280 TraceCheckUtils]: 9: Hoare triple {305#false} call isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(isinf_double_~x, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);call isinf_double_#t~mem6 := read~intINTTYPE4(isinf_double_~#ew_u~1.base, ~bvadd32(4bv32, isinf_double_~#ew_u~1.offset), 4bv32);isinf_double_~hx~0 := isinf_double_#t~mem6;call write~intFLOATTYPE8(isinf_double_#t~union7, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);havoc isinf_double_#t~mem6;havoc isinf_double_#t~union7;call isinf_double_#t~mem8 := read~intINTTYPE4(isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 4bv32);isinf_double_~lx~0 := isinf_double_#t~mem8;call write~intFLOATTYPE8(isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);havoc isinf_double_#t~mem8;havoc isinf_double_#t~union9;call ULTIMATE.dealloc(isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset);havoc isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset; {305#false} is VALID [2020-07-28 17:42:30,938 INFO L280 TraceCheckUtils]: 8: Hoare triple {305#false} main_#t~ret10 := floor_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem6, isinf_double_#t~union7, isinf_double_#t~mem8, isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {305#false} is VALID [2020-07-28 17:42:30,939 INFO L280 TraceCheckUtils]: 7: Hoare triple {305#false} assume 0bv32 == ~bvor32(~bvand32(floor_double_~i0~0, floor_double_~i~0), floor_double_~i1~0);floor_double_#res := floor_double_~x; {305#false} is VALID [2020-07-28 17:42:30,939 INFO L280 TraceCheckUtils]: 6: Hoare triple {305#false} assume !~bvslt32(floor_double_~j0~0, 0bv32);floor_double_~i~0 := ~bvashr32(1048575bv32, floor_double_~j0~0); {305#false} is VALID [2020-07-28 17:42:30,944 INFO L280 TraceCheckUtils]: 5: Hoare triple {381#(not (bvslt ULTIMATE.start_floor_double_~j0~0 (_ bv20 32)))} assume ~bvslt32(floor_double_~j0~0, 20bv32); {305#false} is VALID [2020-07-28 17:42:30,946 INFO L280 TraceCheckUtils]: 4: Hoare triple {385#(not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ULTIMATE.start_floor_double_~i0~0 (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))} floor_double_~j0~0 := ~bvsub32(~bvand32(2047bv32, ~bvashr32(floor_double_~i0~0, 20bv32)), 1023bv32); {381#(not (bvslt ULTIMATE.start_floor_double_~j0~0 (_ bv20 32)))} is VALID [2020-07-28 17:42:30,950 INFO L280 TraceCheckUtils]: 3: Hoare triple {385#(not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ULTIMATE.start_floor_double_~i0~0 (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))} goto; {385#(not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ULTIMATE.start_floor_double_~i0~0 (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))} is VALID [2020-07-28 17:42:30,958 INFO L280 TraceCheckUtils]: 2: Hoare triple {392#(forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (or (not (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) ULTIMATE.start_floor_double_~x)) (not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))))} call floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(floor_double_~x, floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, 8bv32);call floor_double_#t~mem0 := read~intINTTYPE4(floor_double_~#ew_u~0.base, ~bvadd32(4bv32, floor_double_~#ew_u~0.offset), 4bv32);floor_double_~i0~0 := floor_double_#t~mem0;call write~intFLOATTYPE8(floor_double_#t~union1, floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, 8bv32);havoc floor_double_#t~union1;havoc floor_double_#t~mem0;call floor_double_#t~mem2 := read~intINTTYPE4(floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, 4bv32);floor_double_~i1~0 := floor_double_#t~mem2;call write~intFLOATTYPE8(floor_double_#t~union3, floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, 8bv32);havoc floor_double_#t~union3;havoc floor_double_#t~mem2;call ULTIMATE.dealloc(floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset);havoc floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset; {385#(not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ULTIMATE.start_floor_double_~i0~0 (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))} is VALID [2020-07-28 17:42:30,964 INFO L280 TraceCheckUtils]: 1: Hoare triple {304#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());floor_double_#in~x := main_~x~0;havoc floor_double_#res;havoc floor_double_#t~mem0, floor_double_#t~union1, floor_double_#t~mem2, floor_double_#t~union3, floor_double_~#ew_u~0.base, floor_double_~#ew_u~0.offset, floor_double_#t~mem4, floor_double_#t~union5.lsw, floor_double_#t~union5.msw, floor_double_~#iw_u~0.base, floor_double_~#iw_u~0.offset, floor_double_~x, floor_double_~i0~0, floor_double_~i1~0, floor_double_~j0~0, floor_double_~i~0, floor_double_~j~0;floor_double_~x := floor_double_#in~x;havoc floor_double_~i0~0;havoc floor_double_~i1~0;havoc floor_double_~j0~0;havoc floor_double_~i~0;havoc floor_double_~j~0; {392#(forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (or (not (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) ULTIMATE.start_floor_double_~x)) (not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))))} is VALID [2020-07-28 17:42:30,964 INFO L280 TraceCheckUtils]: 0: Hoare triple {304#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_floor~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300); {304#true} is VALID [2020-07-28 17:42:30,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:42:30,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296113865] [2020-07-28 17:42:30,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:42:30,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-07-28 17:42:30,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115725045] [2020-07-28 17:42:30,968 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-07-28 17:42:30,968 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:42:30,969 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 17:42:31,044 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:42:31,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 17:42:31,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:42:31,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 17:42:31,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:42:31,045 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 8 states. [2020-07-28 17:42:31,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:42:31,898 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-07-28 17:42:31,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:42:31,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-07-28 17:42:31,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:42:31,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:42:31,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2020-07-28 17:42:31,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:42:31,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2020-07-28 17:42:31,902 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 55 transitions. [2020-07-28 17:42:32,346 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:42:32,347 INFO L225 Difference]: With dead ends: 42 [2020-07-28 17:42:32,347 INFO L226 Difference]: Without dead ends: 16 [2020-07-28 17:42:32,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:42:32,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-07-28 17:42:32,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-07-28 17:42:32,368 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:42:32,368 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 16 states. [2020-07-28 17:42:32,368 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-28 17:42:32,369 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-28 17:42:32,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:42:32,370 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-07-28 17:42:32,370 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-07-28 17:42:32,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:42:32,371 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:42:32,371 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-28 17:42:32,371 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-28 17:42:32,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:42:32,373 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-07-28 17:42:32,373 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-07-28 17:42:32,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:42:32,374 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:42:32,374 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:42:32,374 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:42:32,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-28 17:42:32,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-07-28 17:42:32,376 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-07-28 17:42:32,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:42:32,376 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-07-28 17:42:32,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 17:42:32,376 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-07-28 17:42:32,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 17:42:32,377 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:42:32,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:42:32,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:42:32,589 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:42:32,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:42:32,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1582346339, now seen corresponding path program 1 times [2020-07-28 17:42:32,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:42:32,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661889868] [2020-07-28 17:42:32,592 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 [2020-07-28 17:42:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:42:32,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:42:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:42:32,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:42:32,913 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-07-28 17:42:32,914 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:42:33,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 17:42:33,152 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:42:33,152 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:42:33,152 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-28 17:42:33,152 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-28 17:42:33,152 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-28 17:42:33,152 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-28 17:42:33,153 WARN L170 areAnnotationChecker]: L19-3 has no Hoare annotation [2020-07-28 17:42:33,153 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:42:33,153 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:42:33,153 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 17:42:33,153 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 17:42:33,153 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-28 17:42:33,153 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-28 17:42:33,154 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-28 17:42:33,154 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-28 17:42:33,154 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 17:42:33,154 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 17:42:33,154 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 17:42:33,154 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 17:42:33,154 WARN L170 areAnnotationChecker]: L54 has no Hoare annotation [2020-07-28 17:42:33,155 WARN L170 areAnnotationChecker]: L54 has no Hoare annotation [2020-07-28 17:42:33,155 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:42:33,155 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:42:33,155 WARN L170 areAnnotationChecker]: L70-1 has no Hoare annotation [2020-07-28 17:42:33,155 WARN L170 areAnnotationChecker]: L70-1 has no Hoare annotation [2020-07-28 17:42:33,155 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-28 17:42:33,155 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-28 17:42:33,156 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-28 17:42:33,156 WARN L170 areAnnotationChecker]: L56 has no Hoare annotation [2020-07-28 17:42:33,156 WARN L170 areAnnotationChecker]: L56 has no Hoare annotation [2020-07-28 17:42:33,156 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-28 17:42:33,156 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-28 17:42:33,156 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-28 17:42:33,156 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-28 17:42:33,157 WARN L170 areAnnotationChecker]: L70-2 has no Hoare annotation [2020-07-28 17:42:33,157 WARN L170 areAnnotationChecker]: L82-2 has no Hoare annotation [2020-07-28 17:42:33,157 WARN L170 areAnnotationChecker]: L82-2 has no Hoare annotation [2020-07-28 17:42:33,157 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:42:33,157 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:42:33,157 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-28 17:42:33,157 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-28 17:42:33,158 WARN L170 areAnnotationChecker]: L82-1 has no Hoare annotation [2020-07-28 17:42:33,158 WARN L170 areAnnotationChecker]: L82-1 has no Hoare annotation [2020-07-28 17:42:33,158 WARN L170 areAnnotationChecker]: L82-3 has no Hoare annotation [2020-07-28 17:42:33,158 WARN L170 areAnnotationChecker]: L41-2 has no Hoare annotation [2020-07-28 17:42:33,158 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2020-07-28 17:42:33,158 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2020-07-28 17:42:33,158 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation [2020-07-28 17:42:33,158 WARN L170 areAnnotationChecker]: L91 has no Hoare annotation [2020-07-28 17:42:33,159 WARN L170 areAnnotationChecker]: L62 has no Hoare annotation [2020-07-28 17:42:33,159 WARN L170 areAnnotationChecker]: L62 has no Hoare annotation [2020-07-28 17:42:33,159 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-28 17:42:33,159 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-28 17:42:33,159 WARN L170 areAnnotationChecker]: L62-2 has no Hoare annotation [2020-07-28 17:42:33,159 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-28 17:42:33,159 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-28 17:42:33,160 WARN L170 areAnnotationChecker]: L109 has no Hoare annotation [2020-07-28 17:42:33,160 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:42:33,160 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:42:33,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:42:33 BoogieIcfgContainer [2020-07-28 17:42:33,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:42:33,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:42:33,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:42:33,163 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:42:33,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:42:27" (3/4) ... [2020-07-28 17:42:33,166 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:42:33,236 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:42:33,237 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:42:33,240 INFO L168 Benchmark]: Toolchain (without parser) took 7407.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 956.2 MB in the beginning and 884.2 MB in the end (delta: 72.0 MB). Peak memory consumption was 196.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:42:33,241 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:42:33,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:42:33,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:42:33,243 INFO L168 Benchmark]: Boogie Preprocessor took 47.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:42:33,243 INFO L168 Benchmark]: RCFGBuilder took 1607.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:42:33,244 INFO L168 Benchmark]: TraceAbstraction took 5173.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 884.2 MB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:42:33,245 INFO L168 Benchmark]: Witness Printer took 73.79 ms. Allocated memory is still 1.2 GB. Free memory is still 884.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:42:33,248 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 441.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1607.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5173.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 884.2 MB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 11.5 GB. * Witness Printer took 73.79 ms. Allocated memory is still 1.2 GB. Free memory is still 884.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 106]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L101] double x = 1.0 / 0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND FALSE !(j0 < 20) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L47] COND TRUE j0 > 51 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L48] COND TRUE j0 == 0x400 [L49] return x + x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L102] double res = floor_double(x); [L81] __int32_t hx, lx; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L83] ieee_double_shape_type ew_u; [L84] ew_u.value = (x) [L85] EXPR ew_u.parts.msw [L85] (hx) = ew_u.parts.msw [L86] EXPR ew_u.parts.lsw [L86] (lx) = ew_u.parts.lsw [L88] hx &= 0x7fffffff [L89] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L90] hx = 0x7ff00000 - hx [L91] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L105] COND TRUE !isinf_double(res) [L106] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 45 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 5 QuantifiedInterpolants, 2276 SizeOfPredicates, 8 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...