./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a ................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 21:12:24,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:12:24,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:12:24,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:12:24,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:12:24,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:12:24,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:12:24,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:12:24,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:12:24,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:12:24,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:12:24,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:12:24,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:12:24,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:12:24,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:12:24,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:12:24,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:12:24,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:12:24,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:12:24,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:12:24,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:12:24,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:12:24,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:12:24,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:12:24,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:12:24,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:12:24,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:12:24,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:12:24,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:12:24,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:12:24,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:12:24,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:12:24,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:12:24,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:12:24,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:12:24,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:12:24,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:12:24,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:12:24,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:12:24,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:12:24,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:12:24,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 21:12:24,705 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:12:24,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:12:24,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:12:24,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:12:24,707 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:12:24,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:12:24,708 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:12:24,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:12:24,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:12:24,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:12:24,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:12:24,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:12:24,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:12:24,710 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:12:24,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:12:24,711 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:12:24,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:12:24,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:12:24,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:12:24,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:12:24,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:12:24,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:12:24,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:12:24,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:12:24,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:12:24,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:12:24,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:12:24,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:12:24,715 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 -> 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a [2019-11-19 21:12:25,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:12:25,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:12:25,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:12:25,033 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:12:25,034 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:12:25,035 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-11-19 21:12:25,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5949461c0/c4a8a464ece44c4da82a4aef110a536b/FLAG59c9fb727 [2019-11-19 21:12:25,597 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:12:25,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-11-19 21:12:25,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5949461c0/c4a8a464ece44c4da82a4aef110a536b/FLAG59c9fb727 [2019-11-19 21:12:25,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5949461c0/c4a8a464ece44c4da82a4aef110a536b [2019-11-19 21:12:25,922 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:12:25,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:12:25,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:12:25,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:12:25,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:12:25,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:12:25" (1/1) ... [2019-11-19 21:12:25,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b0aa1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:25, skipping insertion in model container [2019-11-19 21:12:25,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:12:25" (1/1) ... [2019-11-19 21:12:25,941 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:12:25,980 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:12:26,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:12:26,317 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:12:26,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:12:26,406 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:12:26,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26 WrapperNode [2019-11-19 21:12:26,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:12:26,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:12:26,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:12:26,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:12:26,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26" (1/1) ... [2019-11-19 21:12:26,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26" (1/1) ... [2019-11-19 21:12:26,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:12:26,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:12:26,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:12:26,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:12:26,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26" (1/1) ... [2019-11-19 21:12:26,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26" (1/1) ... [2019-11-19 21:12:26,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26" (1/1) ... [2019-11-19 21:12:26,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26" (1/1) ... [2019-11-19 21:12:26,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26" (1/1) ... [2019-11-19 21:12:26,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26" (1/1) ... [2019-11-19 21:12:26,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26" (1/1) ... [2019-11-19 21:12:26,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:12:26,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:12:26,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:12:26,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:12:26,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26" (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 [2019-11-19 21:12:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:12:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 21:12:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 21:12:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 21:12:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:12:26,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:12:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 21:12:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-19 21:12:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 21:12:27,179 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:12:27,180 INFO L285 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-19 21:12:27,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:12:27 BoogieIcfgContainer [2019-11-19 21:12:27,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:12:27,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:12:27,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:12:27,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:12:27,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:12:25" (1/3) ... [2019-11-19 21:12:27,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d769065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:12:27, skipping insertion in model container [2019-11-19 21:12:27,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:26" (2/3) ... [2019-11-19 21:12:27,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d769065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:12:27, skipping insertion in model container [2019-11-19 21:12:27,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:12:27" (3/3) ... [2019-11-19 21:12:27,190 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2019-11-19 21:12:27,199 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:12:27,206 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 21:12:27,217 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 21:12:27,242 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:12:27,243 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:12:27,243 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:12:27,243 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:12:27,244 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:12:27,244 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:12:27,244 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:12:27,244 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:12:27,258 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-11-19 21:12:27,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 21:12:27,265 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:12:27,266 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:12:27,266 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:12:27,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:12:27,272 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-11-19 21:12:27,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:12:27,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130812358] [2019-11-19 21:12:27,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:12:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:12:27,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:12:27,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130812358] [2019-11-19 21:12:27,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:12:27,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 21:12:27,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921077567] [2019-11-19 21:12:27,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 21:12:27,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:12:27,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 21:12:27,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:12:27,425 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-11-19 21:12:27,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:12:27,450 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-11-19 21:12:27,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 21:12:27,451 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 21:12:27,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:12:27,463 INFO L225 Difference]: With dead ends: 108 [2019-11-19 21:12:27,463 INFO L226 Difference]: Without dead ends: 52 [2019-11-19 21:12:27,467 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:12:27,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-19 21:12:27,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-19 21:12:27,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-19 21:12:27,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-11-19 21:12:27,513 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-11-19 21:12:27,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:12:27,514 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-11-19 21:12:27,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 21:12:27,514 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-11-19 21:12:27,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 21:12:27,515 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:12:27,516 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:12:27,516 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:12:27,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:12:27,517 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-11-19 21:12:27,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:12:27,518 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897004332] [2019-11-19 21:12:27,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:12:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:12:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:12:27,730 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 21:12:27,730 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:12:27,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:12:27 BoogieIcfgContainer [2019-11-19 21:12:27,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:12:27,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:12:27,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:12:27,773 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:12:27,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:12:27" (3/4) ... [2019-11-19 21:12:27,778 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 21:12:27,778 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:12:27,781 INFO L168 Benchmark]: Toolchain (without parser) took 1856.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -98.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:12:27,782 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:12:27,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-19 21:12:27,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:12:27,785 INFO L168 Benchmark]: Boogie Preprocessor took 60.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:12:27,786 INFO L168 Benchmark]: RCFGBuilder took 635.35 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: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:12:27,788 INFO L168 Benchmark]: TraceAbstraction took 588.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:12:27,788 INFO L168 Benchmark]: Witness Printer took 6.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:12:27,793 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 483.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.66 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 635.35 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: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 588.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 175]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 170, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L169] double x = __VERIFIER_nondet_double(); [L170] double y = -0.0; [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L171] double res = fmod_double(x, y); [L16] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L174] COND TRUE !isnan_double(res) [L175] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-19 21:12:29,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:12:29,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:12:29,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:12:29,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:12:29,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:12:29,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:12:29,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:12:29,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:12:29,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:12:29,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:12:29,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:12:29,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:12:29,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:12:29,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:12:29,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:12:29,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:12:29,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:12:29,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:12:29,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:12:29,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:12:29,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:12:29,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:12:29,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:12:29,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:12:29,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:12:29,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:12:29,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:12:29,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:12:29,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:12:29,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:12:29,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:12:29,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:12:29,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:12:29,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:12:29,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:12:29,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:12:29,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:12:29,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:12:29,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:12:29,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:12:29,936 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 21:12:29,951 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:12:29,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:12:29,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:12:29,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:12:29,953 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:12:29,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:12:29,954 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:12:29,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:12:29,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:12:29,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:12:29,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:12:29,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:12:29,956 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 21:12:29,956 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 21:12:29,956 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:12:29,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:12:29,957 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:12:29,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:12:29,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:12:29,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:12:29,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:12:29,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:12:29,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:12:29,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:12:29,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:12:29,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:12:29,960 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 21:12:29,960 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 21:12:29,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:12:29,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 21:12:29,961 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 -> 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a [2019-11-19 21:12:30,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:12:30,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:12:30,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:12:30,310 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:12:30,311 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:12:30,312 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-11-19 21:12:30,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0868efcc/b46ebb565cf441e193459a2e65548d16/FLAG0c46acd96 [2019-11-19 21:12:30,892 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:12:30,893 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-11-19 21:12:30,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0868efcc/b46ebb565cf441e193459a2e65548d16/FLAG0c46acd96 [2019-11-19 21:12:31,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0868efcc/b46ebb565cf441e193459a2e65548d16 [2019-11-19 21:12:31,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:12:31,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:12:31,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:12:31,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:12:31,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:12:31,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:12:31" (1/1) ... [2019-11-19 21:12:31,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39490dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31, skipping insertion in model container [2019-11-19 21:12:31,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:12:31" (1/1) ... [2019-11-19 21:12:31,243 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:12:31,270 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:12:31,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:12:31,503 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:12:31,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:12:31,656 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:12:31,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31 WrapperNode [2019-11-19 21:12:31,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:12:31,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:12:31,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:12:31,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:12:31,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31" (1/1) ... [2019-11-19 21:12:31,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31" (1/1) ... [2019-11-19 21:12:31,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:12:31,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:12:31,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:12:31,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:12:31,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31" (1/1) ... [2019-11-19 21:12:31,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31" (1/1) ... [2019-11-19 21:12:31,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31" (1/1) ... [2019-11-19 21:12:31,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31" (1/1) ... [2019-11-19 21:12:31,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31" (1/1) ... [2019-11-19 21:12:31,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31" (1/1) ... [2019-11-19 21:12:31,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31" (1/1) ... [2019-11-19 21:12:31,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:12:31,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:12:31,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:12:31,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:12:31,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:12:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-19 21:12:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-19 21:12:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:12:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-19 21:12:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 21:12:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:12:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:12:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 21:12:31,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 21:12:35,347 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:12:35,348 INFO L285 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-19 21:12:35,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:12:35 BoogieIcfgContainer [2019-11-19 21:12:35,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:12:35,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:12:35,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:12:35,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:12:35,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:12:31" (1/3) ... [2019-11-19 21:12:35,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46eedffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:12:35, skipping insertion in model container [2019-11-19 21:12:35,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:12:31" (2/3) ... [2019-11-19 21:12:35,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46eedffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:12:35, skipping insertion in model container [2019-11-19 21:12:35,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:12:35" (3/3) ... [2019-11-19 21:12:35,356 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2019-11-19 21:12:35,365 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:12:35,371 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 21:12:35,380 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 21:12:35,405 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:12:35,406 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:12:35,406 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:12:35,406 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:12:35,407 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:12:35,407 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:12:35,408 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:12:35,408 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:12:35,424 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-11-19 21:12:35,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 21:12:35,431 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:12:35,432 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:12:35,433 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:12:35,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:12:35,440 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-11-19 21:12:35,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:12:35,453 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942005431] [2019-11-19 21:12:35,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-19 21:12:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:12:36,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 21:12:36,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:12:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:12:36,483 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:12:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:12:36,489 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942005431] [2019-11-19 21:12:36,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:12:36,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 21:12:36,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759129929] [2019-11-19 21:12:36,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 21:12:36,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:12:36,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 21:12:36,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:12:36,509 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-11-19 21:12:36,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:12:36,542 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-11-19 21:12:36,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 21:12:36,543 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 21:12:36,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:12:36,562 INFO L225 Difference]: With dead ends: 108 [2019-11-19 21:12:36,563 INFO L226 Difference]: Without dead ends: 52 [2019-11-19 21:12:36,566 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:12:36,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-19 21:12:36,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-19 21:12:36,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-19 21:12:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-11-19 21:12:36,610 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-11-19 21:12:36,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:12:36,611 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-11-19 21:12:36,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 21:12:36,612 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-11-19 21:12:36,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 21:12:36,613 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:12:36,613 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:12:36,828 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 21:12:36,828 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:12:36,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:12:36,829 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-11-19 21:12:36,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:12:36,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075476527] [2019-11-19 21:12:36,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-19 21:12:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:12:39,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 21:12:39,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:12:44,035 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |c_ULTIMATE.start_fmod_double_#res|)) is different from true [2019-11-19 21:12:44,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:12:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:12:46,580 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:12:49,961 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-19 21:12:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:12:50,991 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075476527] [2019-11-19 21:12:50,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:12:50,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-19 21:12:50,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692916855] [2019-11-19 21:12:50,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-19 21:12:50,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:12:50,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-19 21:12:50,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=43, Unknown=2, NotChecked=26, Total=90 [2019-11-19 21:12:50,995 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 10 states. [2019-11-19 21:12:54,368 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53)))) is different from true [2019-11-19 21:13:24,369 WARN L191 SmtUtils]: Spent 14.19 s on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2019-11-19 21:13:27,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:13:27,504 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2019-11-19 21:13:27,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 21:13:27,506 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-19 21:13:27,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:13:27,509 INFO L225 Difference]: With dead ends: 57 [2019-11-19 21:13:27,509 INFO L226 Difference]: Without dead ends: 52 [2019-11-19 21:13:27,513 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 40.8s TimeCoverageRelationStatistics Valid=30, Invalid=68, Unknown=4, NotChecked=54, Total=156 [2019-11-19 21:13:27,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-19 21:13:27,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-19 21:13:27,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-19 21:13:27,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2019-11-19 21:13:27,535 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2019-11-19 21:13:27,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:13:27,538 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2019-11-19 21:13:27,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-19 21:13:27,538 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2019-11-19 21:13:27,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-19 21:13:27,540 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:13:27,540 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:13:27,755 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 21:13:27,756 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:13:27,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:13:27,757 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2019-11-19 21:13:27,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:13:27,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110927698] [2019-11-19 21:13:27,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-19 21:13:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:13:27,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-19 21:13:27,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:13:28,000 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2019-11-19 21:13:28,015 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:13:28,018 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2019-11-19 21:13:28,019 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:13:28,033 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:13:28,043 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:13:28,043 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2019-11-19 21:13:28,044 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-19 21:13:28,047 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:13:28,047 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 21:13:28,058 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:13:28,060 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 21:13:28,060 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:47, output treesize:19 [2019-11-19 21:13:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:13:28,110 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:13:28,206 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:13:28,207 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 48 [2019-11-19 21:13:28,243 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:13:28,243 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 31 treesize of output 35 [2019-11-19 21:13:28,245 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:13:28,266 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:13:28,278 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:13:28,279 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2019-11-19 21:13:28,281 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-19 21:13:28,287 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:13:28,288 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 21:13:28,299 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:13:28,300 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 21:13:28,301 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:60, output treesize:20 [2019-11-19 21:13:28,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:13:28,345 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110927698] [2019-11-19 21:13:28,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:13:28,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 21:13:28,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730169370] [2019-11-19 21:13:28,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 21:13:28,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:13:28,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 21:13:28,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-19 21:13:28,349 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 8 states. [2019-11-19 21:13:28,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:13:28,463 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2019-11-19 21:13:28,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 21:13:28,463 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-19 21:13:28,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:13:28,464 INFO L225 Difference]: With dead ends: 52 [2019-11-19 21:13:28,464 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 21:13:28,465 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-19 21:13:28,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 21:13:28,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 21:13:28,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 21:13:28,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 21:13:28,467 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-19 21:13:28,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:13:28,467 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 21:13:28,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 21:13:28,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 21:13:28,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 21:13:28,677 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 21:13:28,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 21:13:33,371 WARN L191 SmtUtils]: Spent 4.64 s on a formula simplification that was a NOOP. DAG size: 9 [2019-11-19 21:13:37,879 WARN L191 SmtUtils]: Spent 4.49 s on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2019-11-19 21:13:37,889 INFO L444 ceAbstractionStarter]: For program point L118(lines 118 119) no Hoare annotation was computed. [2019-11-19 21:13:37,889 INFO L444 ceAbstractionStarter]: For program point L118-2(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:13:37,890 INFO L444 ceAbstractionStarter]: For program point L69-2(lines 69 70) no Hoare annotation was computed. [2019-11-19 21:13:37,890 INFO L440 ceAbstractionStarter]: At program point L69-3(lines 69 70) the Hoare annotation is: false [2019-11-19 21:13:37,890 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 21:13:37,890 INFO L444 ceAbstractionStarter]: For program point L152(lines 152 157) no Hoare annotation was computed. [2019-11-19 21:13:37,890 INFO L444 ceAbstractionStarter]: For program point L152-1(lines 140 159) no Hoare annotation was computed. [2019-11-19 21:13:37,890 INFO L444 ceAbstractionStarter]: For program point L152-2(lines 152 157) no Hoare annotation was computed. [2019-11-19 21:13:37,890 INFO L444 ceAbstractionStarter]: For program point L53(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:13:37,890 INFO L444 ceAbstractionStarter]: For program point L120-1(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:13:37,891 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 60) no Hoare annotation was computed. [2019-11-19 21:13:37,891 INFO L444 ceAbstractionStarter]: For program point L104(lines 104 105) no Hoare annotation was computed. [2019-11-19 21:13:37,891 INFO L444 ceAbstractionStarter]: For program point L104-2(lines 101 115) no Hoare annotation was computed. [2019-11-19 21:13:37,891 INFO L444 ceAbstractionStarter]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2019-11-19 21:13:37,891 INFO L440 ceAbstractionStarter]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2019-11-19 21:13:37,891 INFO L440 ceAbstractionStarter]: At program point L106-1(lines 101 115) the Hoare annotation is: false [2019-11-19 21:13:37,891 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 21:13:37,891 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2019-11-19 21:13:37,892 INFO L444 ceAbstractionStarter]: For program point L91-2(lines 87 98) no Hoare annotation was computed. [2019-11-19 21:13:37,893 INFO L444 ceAbstractionStarter]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2019-11-19 21:13:37,893 INFO L440 ceAbstractionStarter]: At program point L58-3(lines 58 59) the Hoare annotation is: false [2019-11-19 21:13:37,893 INFO L444 ceAbstractionStarter]: For program point L174(lines 174 177) no Hoare annotation was computed. [2019-11-19 21:13:37,893 INFO L444 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-19 21:13:37,894 INFO L444 ceAbstractionStarter]: For program point L142(lines 142 151) no Hoare annotation was computed. [2019-11-19 21:13:37,894 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 45) no Hoare annotation was computed. [2019-11-19 21:13:37,894 INFO L444 ceAbstractionStarter]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2019-11-19 21:13:37,894 INFO L440 ceAbstractionStarter]: At program point L27-2(lines 27 32) the Hoare annotation is: (= ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53))) [2019-11-19 21:13:37,895 INFO L444 ceAbstractionStarter]: For program point L110(lines 110 111) no Hoare annotation was computed. [2019-11-19 21:13:37,895 INFO L440 ceAbstractionStarter]: At program point L160(lines 23 161) the Hoare annotation is: (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_double_#res|)) [2019-11-19 21:13:37,895 INFO L440 ceAbstractionStarter]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2019-11-19 21:13:37,895 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 21:13:37,896 INFO L444 ceAbstractionStarter]: For program point L127-3(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:13:37,896 INFO L444 ceAbstractionStarter]: For program point L145(lines 145 151) no Hoare annotation was computed. [2019-11-19 21:13:37,896 INFO L444 ceAbstractionStarter]: For program point L79(lines 79 85) no Hoare annotation was computed. [2019-11-19 21:13:37,896 INFO L444 ceAbstractionStarter]: For program point L46(lines 46 51) no Hoare annotation was computed. [2019-11-19 21:13:37,897 INFO L444 ceAbstractionStarter]: For program point L79-2(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:13:37,897 INFO L444 ceAbstractionStarter]: For program point L46-2(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:13:37,897 INFO L447 ceAbstractionStarter]: At program point L179(lines 163 180) the Hoare annotation is: true [2019-11-19 21:13:37,897 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-11-19 21:13:37,898 INFO L444 ceAbstractionStarter]: For program point L64(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:13:37,898 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2019-11-19 21:13:37,898 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 21:13:37,898 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2019-11-19 21:13:37,898 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-11-19 21:13:37,899 INFO L440 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) [2019-11-19 21:13:37,899 INFO L444 ceAbstractionStarter]: For program point L132(lines 132 159) no Hoare annotation was computed. [2019-11-19 21:13:37,899 INFO L444 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2019-11-19 21:13:37,899 INFO L444 ceAbstractionStarter]: For program point L33-1(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:13:37,900 INFO L444 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2019-11-19 21:13:37,900 INFO L444 ceAbstractionStarter]: For program point L33-2(lines 33 38) no Hoare annotation was computed. [2019-11-19 21:13:37,900 INFO L440 ceAbstractionStarter]: At program point L66-3(lines 66 67) the Hoare annotation is: false [2019-11-19 21:13:37,900 INFO L444 ceAbstractionStarter]: For program point L134-1(lines 134 139) no Hoare annotation was computed. [2019-11-19 21:13:37,901 INFO L444 ceAbstractionStarter]: For program point L101-1(lines 101 115) no Hoare annotation was computed. [2019-11-19 21:13:37,901 INFO L440 ceAbstractionStarter]: At program point L134-2(lines 134 139) the Hoare annotation is: false [2019-11-19 21:13:37,901 INFO L444 ceAbstractionStarter]: For program point L101-3(lines 101 115) no Hoare annotation was computed. [2019-11-19 21:13:37,912 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:37,914 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:37,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-19 21:13:37,914 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:37,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-19 21:13:37,918 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:37,918 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:37,918 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-19 21:13:37,919 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:37,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-19 21:13:37,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:13:37 BoogieIcfgContainer [2019-11-19 21:13:37,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:13:37,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:13:37,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:13:37,924 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:13:37,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:12:35" (3/4) ... [2019-11-19 21:13:37,929 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 21:13:37,945 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-19 21:13:37,946 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-19 21:13:37,946 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 21:13:38,004 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 21:13:38,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:13:38,007 INFO L168 Benchmark]: Toolchain (without parser) took 66782.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 955.0 MB in the beginning and 968.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 131.0 MB. Max. memory is 11.5 GB. [2019-11-19 21:13:38,008 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:13:38,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:13:38,009 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.61 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-19 21:13:38,010 INFO L168 Benchmark]: Boogie Preprocessor took 65.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:13:38,010 INFO L168 Benchmark]: RCFGBuilder took 3556.55 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. [2019-11-19 21:13:38,011 INFO L168 Benchmark]: TraceAbstraction took 62572.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.2 MB in the end (delta: 115.1 MB). Peak memory consumption was 115.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:13:38,012 INFO L168 Benchmark]: Witness Printer took 81.39 ms. Allocated memory is still 1.2 GB. Free memory is still 968.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:13:38,019 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 431.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.61 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.46 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 3556.55 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 62572.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.2 MB in the end (delta: 115.1 MB). Peak memory consumption was 115.1 MB. Max. memory is 11.5 GB. * Witness Printer took 81.39 ms. Allocated memory is still 1.2 GB. Free memory is still 968.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant [2019-11-19 21:13:38,031 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:38,032 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:38,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-19 21:13:38,032 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:38,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-19 21:13:38,035 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:38,035 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:38,036 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-19 21:13:38,036 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:13:38,036 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_double_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()))) == \result) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 62.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 36.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.2s, HoareTripleCheckerStatistics: 160 SDtfs, 5 SDslu, 414 SDs, 0 SdLazy, 24 SolverSat, 3 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 41.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 30 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 9.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 13 QuantifiedInterpolants, 4561 SizeOfPredicates, 16 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...