./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e37ba74c70ee452f780b10cba83059c905066e35 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e37ba74c70ee452f780b10cba83059c905066e35 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:53:33,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:53:33,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:53:33,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:53:33,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:53:33,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:53:33,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:53:33,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:53:33,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:53:33,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:53:33,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:53:33,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:53:33,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:53:33,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:53:33,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:53:33,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:53:33,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:53:33,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:53:33,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:53:33,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:53:33,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:53:33,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:53:33,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:53:33,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:53:33,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:53:33,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:53:33,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:53:33,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:53:33,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:53:33,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:53:33,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:53:33,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:53:33,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:53:33,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:53:33,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:53:33,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:53:33,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:53:33,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:53:33,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:53:33,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:53:33,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:53:33,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:53:33,622 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:53:33,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:53:33,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:53:33,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:53:33,627 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:53:33,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:53:33,628 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:53:33,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:53:33,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:53:33,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:53:33,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:53:33,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:53:33,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:53:33,631 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:53:33,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:53:33,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:53:33,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:53:33,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:53:33,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:53:33,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:53:33,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:53:33,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:53:33,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:53:33,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:53:33,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:53:33,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:53:33,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:53:33,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:53:33,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:53:33,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37ba74c70ee452f780b10cba83059c905066e35 [2020-10-25 21:53:34,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:53:34,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:53:34,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:53:34,092 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:53:34,092 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:53:34,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-10-25 21:53:34,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8931493ed/cae9678e9b394bb5a6d38c71aced8e7a/FLAGc25f9d61a [2020-10-25 21:53:34,884 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:53:34,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-10-25 21:53:34,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8931493ed/cae9678e9b394bb5a6d38c71aced8e7a/FLAGc25f9d61a [2020-10-25 21:53:35,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8931493ed/cae9678e9b394bb5a6d38c71aced8e7a [2020-10-25 21:53:35,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:53:35,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:53:35,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:53:35,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:53:35,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:53:35,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:53:35" (1/1) ... [2020-10-25 21:53:35,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492b4568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35, skipping insertion in model container [2020-10-25 21:53:35,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:53:35" (1/1) ... [2020-10-25 21:53:35,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:53:35,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:53:35,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:53:35,606 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:53:35,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:53:35,686 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:53:35,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35 WrapperNode [2020-10-25 21:53:35,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:53:35,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:53:35,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:53:35,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:53:35,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35" (1/1) ... [2020-10-25 21:53:35,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35" (1/1) ... [2020-10-25 21:53:35,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:53:35,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:53:35,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:53:35,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:53:35,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35" (1/1) ... [2020-10-25 21:53:35,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35" (1/1) ... [2020-10-25 21:53:35,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35" (1/1) ... [2020-10-25 21:53:35,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35" (1/1) ... [2020-10-25 21:53:35,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35" (1/1) ... [2020-10-25 21:53:35,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35" (1/1) ... [2020-10-25 21:53:35,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35" (1/1) ... [2020-10-25 21:53:35,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:53:35,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:53:35,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:53:35,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:53:35,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:53:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:53:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:53:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 21:53:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 21:53:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 21:53:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:53:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:53:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 21:53:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-25 21:53:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:53:36,618 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:53:36,618 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-25 21:53:36,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:53:36 BoogieIcfgContainer [2020-10-25 21:53:36,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:53:36,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:53:36,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:53:36,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:53:36,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:53:35" (1/3) ... [2020-10-25 21:53:36,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240be067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:53:36, skipping insertion in model container [2020-10-25 21:53:36,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:35" (2/3) ... [2020-10-25 21:53:36,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240be067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:53:36, skipping insertion in model container [2020-10-25 21:53:36,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:53:36" (3/3) ... [2020-10-25 21:53:36,631 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2020-10-25 21:53:36,648 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:53:36,653 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:53:36,667 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:53:36,699 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:53:36,699 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:53:36,699 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:53:36,700 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:53:36,700 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:53:36,700 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:53:36,700 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:53:36,700 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:53:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-25 21:53:36,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 21:53:36,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:53:36,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:53:36,726 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:53:36,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:53:36,734 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-10-25 21:53:36,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:53:36,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957827771] [2020-10-25 21:53:36,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:53:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:53:36,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:53:36,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957827771] [2020-10-25 21:53:36,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:53:36,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 21:53:36,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282781244] [2020-10-25 21:53:36,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:53:36,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 21:53:36,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:53:36,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:53:36,939 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-10-25 21:53:36,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:53:36,967 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-10-25 21:53:36,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:53:36,968 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-25 21:53:36,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:53:36,981 INFO L225 Difference]: With dead ends: 109 [2020-10-25 21:53:36,981 INFO L226 Difference]: Without dead ends: 52 [2020-10-25 21:53:36,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:53:37,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-25 21:53:37,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-25 21:53:37,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-25 21:53:37,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-10-25 21:53:37,031 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-10-25 21:53:37,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:53:37,031 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-10-25 21:53:37,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:53:37,032 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-10-25 21:53:37,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 21:53:37,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:53:37,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:53:37,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:53:37,033 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:53:37,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:53:37,034 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-10-25 21:53:37,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:53:37,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577777422] [2020-10-25 21:53:37,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:53:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:53:37,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:53:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:53:37,303 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:53:37,333 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:53:37,333 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:53:37,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 21:53:37,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:53:37 BoogieIcfgContainer [2020-10-25 21:53:37,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:53:37,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:53:37,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:53:37,371 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:53:37,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:53:36" (3/4) ... [2020-10-25 21:53:37,376 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:53:37,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:53:37,379 INFO L168 Benchmark]: Toolchain (without parser) took 2180.80 ms. Allocated memory was 41.9 MB in the beginning and 60.8 MB in the end (delta: 18.9 MB). Free memory was 18.5 MB in the beginning and 32.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:53:37,380 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory was 23.7 MB in the beginning and 23.6 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:53:37,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.16 ms. Allocated memory is still 50.3 MB. Free memory was 35.5 MB in the beginning and 33.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:53:37,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.74 ms. Allocated memory is still 50.3 MB. Free memory was 33.5 MB in the beginning and 31.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:53:37,382 INFO L168 Benchmark]: Boogie Preprocessor took 82.43 ms. Allocated memory is still 50.3 MB. Free memory was 31.1 MB in the beginning and 28.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:53:37,383 INFO L168 Benchmark]: RCFGBuilder took 736.86 ms. Allocated memory is still 50.3 MB. Free memory was 28.9 MB in the beginning and 20.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-10-25 21:53:37,384 INFO L168 Benchmark]: TraceAbstraction took 748.73 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 20.4 MB in the beginning and 32.9 MB in the end (delta: -12.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:53:37,385 INFO L168 Benchmark]: Witness Printer took 4.92 ms. Allocated memory is still 60.8 MB. Free memory was 32.9 MB in the beginning and 32.6 MB in the end (delta: 351.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:53:37,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory was 23.7 MB in the beginning and 23.6 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 465.16 ms. Allocated memory is still 50.3 MB. Free memory was 35.5 MB in the beginning and 33.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.74 ms. Allocated memory is still 50.3 MB. Free memory was 33.5 MB in the beginning and 31.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.43 ms. Allocated memory is still 50.3 MB. Free memory was 31.1 MB in the beginning and 28.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 736.86 ms. Allocated memory is still 50.3 MB. Free memory was 28.9 MB in the beginning and 20.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 748.73 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 20.4 MB in the beginning and 32.9 MB in the end (delta: -12.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.92 ms. Allocated memory is still 60.8 MB. Free memory was 32.9 MB in the beginning and 32.6 MB in the end (delta: 351.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L172] double x = -1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L174] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L177] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1122b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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=56occurred 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-5485861 [2020-10-25 21:53:39,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:53:39,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:53:40,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:53:40,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:53:40,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:53:40,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:53:40,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:53:40,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:53:40,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:53:40,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:53:40,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:53:40,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:53:40,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:53:40,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:53:40,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:53:40,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:53:40,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:53:40,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:53:40,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:53:40,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:53:40,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:53:40,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:53:40,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:53:40,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:53:40,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:53:40,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:53:40,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:53:40,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:53:40,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:53:40,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:53:40,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:53:40,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:53:40,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:53:40,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:53:40,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:53:40,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:53:40,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:53:40,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:53:40,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:53:40,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:53:40,078 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:53:40,137 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:53:40,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:53:40,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:53:40,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:53:40,142 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:53:40,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:53:40,142 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:53:40,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:53:40,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:53:40,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:53:40,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:53:40,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:53:40,145 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:53:40,145 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:53:40,145 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:53:40,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:53:40,146 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:53:40,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:53:40,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:53:40,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:53:40,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:53:40,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:53:40,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:53:40,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:53:40,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:53:40,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:53:40,148 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:53:40,149 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:53:40,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:53:40,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:53:40,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:53:40,150 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37ba74c70ee452f780b10cba83059c905066e35 [2020-10-25 21:53:40,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:53:40,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:53:40,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:53:40,684 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:53:40,684 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:53:40,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-10-25 21:53:40,792 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8a777fc/c4dbd9bb211b47e887f9e10d7e4391e3/FLAGfd582a285 [2020-10-25 21:53:41,492 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:53:41,493 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-10-25 21:53:41,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8a777fc/c4dbd9bb211b47e887f9e10d7e4391e3/FLAGfd582a285 [2020-10-25 21:53:41,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8a777fc/c4dbd9bb211b47e887f9e10d7e4391e3 [2020-10-25 21:53:41,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:53:41,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:53:41,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:53:41,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:53:41,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:53:41,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:53:41" (1/1) ... [2020-10-25 21:53:41,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6409aabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:41, skipping insertion in model container [2020-10-25 21:53:41,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:53:41" (1/1) ... [2020-10-25 21:53:41,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:53:41,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:53:41,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:53:41,934 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:53:41,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:53:42,027 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:53:42,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42 WrapperNode [2020-10-25 21:53:42,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:53:42,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:53:42,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:53:42,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:53:42,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42" (1/1) ... [2020-10-25 21:53:42,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42" (1/1) ... [2020-10-25 21:53:42,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:53:42,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:53:42,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:53:42,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:53:42,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42" (1/1) ... [2020-10-25 21:53:42,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42" (1/1) ... [2020-10-25 21:53:42,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42" (1/1) ... [2020-10-25 21:53:42,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42" (1/1) ... [2020-10-25 21:53:42,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42" (1/1) ... [2020-10-25 21:53:42,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42" (1/1) ... [2020-10-25 21:53:42,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42" (1/1) ... [2020-10-25 21:53:42,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:53:42,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:53:42,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:53:42,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:53:42,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:53:42,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-25 21:53:42,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-25 21:53:42,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:53:42,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:53:42,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-10-25 21:53:42,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 21:53:42,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:53:42,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:53:42,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 21:53:42,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:53:46,302 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:53:46,303 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-25 21:53:46,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:53:46 BoogieIcfgContainer [2020-10-25 21:53:46,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:53:46,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:53:46,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:53:46,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:53:46,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:53:41" (1/3) ... [2020-10-25 21:53:46,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ac3dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:53:46, skipping insertion in model container [2020-10-25 21:53:46,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:53:42" (2/3) ... [2020-10-25 21:53:46,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ac3dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:53:46, skipping insertion in model container [2020-10-25 21:53:46,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:53:46" (3/3) ... [2020-10-25 21:53:46,320 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2020-10-25 21:53:46,334 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:53:46,339 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:53:46,351 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:53:46,377 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:53:46,378 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:53:46,378 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:53:46,378 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:53:46,378 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:53:46,378 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:53:46,378 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:53:46,379 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:53:46,394 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-25 21:53:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 21:53:46,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:53:46,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:53:46,402 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:53:46,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:53:46,409 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-10-25 21:53:46,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:53:46,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30320988] [2020-10-25 21:53:46,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 21:53:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:53:47,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 21:53:47,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:53:47,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:53:47,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:53:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:53:47,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30320988] [2020-10-25 21:53:47,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:53:47,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 21:53:47,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601559493] [2020-10-25 21:53:47,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:53:47,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:53:47,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:53:47,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:53:47,767 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-10-25 21:53:47,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:53:47,794 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-10-25 21:53:47,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:53:47,796 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-25 21:53:47,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:53:47,807 INFO L225 Difference]: With dead ends: 109 [2020-10-25 21:53:47,807 INFO L226 Difference]: Without dead ends: 52 [2020-10-25 21:53:47,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:53:47,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-25 21:53:47,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-25 21:53:47,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-25 21:53:47,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-10-25 21:53:47,853 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-10-25 21:53:47,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:53:47,854 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-10-25 21:53:47,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:53:47,854 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-10-25 21:53:47,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 21:53:47,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:53:47,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:53:48,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:53:48,070 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:53:48,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:53:48,073 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-10-25 21:53:48,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:53:48,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210190072] [2020-10-25 21:53:48,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-25 21:53:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:53:49,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-25 21:53:49,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:53:52,466 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (= |c_ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) is different from true [2020-10-25 21:53:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:53:57,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:54:01,158 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-10-25 21:54:03,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:54:03,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210190072] [2020-10-25 21:54:03,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:54:03,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-10-25 21:54:03,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395940973] [2020-10-25 21:54:03,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-25 21:54:03,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:54:03,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-25 21:54:03,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=56, Unknown=2, NotChecked=30, Total=110 [2020-10-25 21:54:03,183 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 11 states. [2020-10-25 21:54:06,934 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_fmod_double_~x (fp.div c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (_ +zero 11 53)))) is different from true [2020-10-25 21:54:20,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:54:20,539 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2020-10-25 21:54:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 21:54:20,594 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-10-25 21:54:20,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:54:20,596 INFO L225 Difference]: With dead ends: 57 [2020-10-25 21:54:20,596 INFO L226 Difference]: Without dead ends: 52 [2020-10-25 21:54:20,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=37, Invalid=82, Unknown=3, NotChecked=60, Total=182 [2020-10-25 21:54:20,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-25 21:54:20,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-25 21:54:20,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-25 21:54:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-10-25 21:54:20,606 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-10-25 21:54:20,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:54:20,607 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-10-25 21:54:20,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-25 21:54:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-10-25 21:54:20,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-25 21:54:20,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:54:20,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:54:20,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 21:54:20,823 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:54:20,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:54:20,825 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-10-25 21:54:20,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:54:20,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227761696] [2020-10-25 21:54:20,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-25 21:54:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:54:20,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-25 21:54:20,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:54:21,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:54:21,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:54:21,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:54:21,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227761696] [2020-10-25 21:54:21,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:54:21,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-25 21:54:21,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147588247] [2020-10-25 21:54:21,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 21:54:21,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:54:21,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 21:54:21,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-25 21:54:21,329 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 8 states. [2020-10-25 21:54:21,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:54:21,559 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2020-10-25 21:54:21,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 21:54:21,559 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-25 21:54:21,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:54:21,560 INFO L225 Difference]: With dead ends: 52 [2020-10-25 21:54:21,560 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:54:21,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-25 21:54:21,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:54:21,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:54:21,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:54:21,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:54:21,562 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-25 21:54:21,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:54:21,563 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:54:21,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 21:54:21,563 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:54:21,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:54:21,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 21:54:21,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:54:26,862 WARN L193 SmtUtils]: Spent 5.02 s on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2020-10-25 21:54:26,888 INFO L274 CegarLoopResult]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2020-10-25 21:54:26,889 INFO L270 CegarLoopResult]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2020-10-25 21:54:26,889 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:54:26,889 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 21:54:26,889 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:54:26,889 INFO L274 CegarLoopResult]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2020-10-25 21:54:26,890 INFO L274 CegarLoopResult]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2020-10-25 21:54:26,890 INFO L270 CegarLoopResult]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2020-10-25 21:54:26,890 INFO L274 CegarLoopResult]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2020-10-25 21:54:26,890 INFO L274 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-10-25 21:54:26,890 INFO L274 CegarLoopResult]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2020-10-25 21:54:26,890 INFO L274 CegarLoopResult]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2020-10-25 21:54:26,890 INFO L270 CegarLoopResult]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2020-10-25 21:54:26,890 INFO L274 CegarLoopResult]: For program point L154(lines 154 159) no Hoare annotation was computed. [2020-10-25 21:54:26,891 INFO L274 CegarLoopResult]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2020-10-25 21:54:26,891 INFO L274 CegarLoopResult]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2020-10-25 21:54:26,891 INFO L274 CegarLoopResult]: For program point L55(lines 25 163) no Hoare annotation was computed. [2020-10-25 21:54:26,891 INFO L274 CegarLoopResult]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2020-10-25 21:54:26,891 INFO L274 CegarLoopResult]: For program point L56(lines 56 62) no Hoare annotation was computed. [2020-10-25 21:54:26,891 INFO L274 CegarLoopResult]: For program point L106(lines 106 107) no Hoare annotation was computed. [2020-10-25 21:54:26,891 INFO L274 CegarLoopResult]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2020-10-25 21:54:26,891 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2020-10-25 21:54:26,891 INFO L270 CegarLoopResult]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2020-10-25 21:54:26,892 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:54:26,892 INFO L270 CegarLoopResult]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2020-10-25 21:54:26,892 INFO L274 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-10-25 21:54:26,892 INFO L274 CegarLoopResult]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2020-10-25 21:54:26,892 INFO L274 CegarLoopResult]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2020-10-25 21:54:26,892 INFO L270 CegarLoopResult]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2020-10-25 21:54:26,892 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:54:26,892 INFO L274 CegarLoopResult]: For program point L177(lines 177 180) no Hoare annotation was computed. [2020-10-25 21:54:26,892 INFO L274 CegarLoopResult]: For program point L144(lines 144 153) no Hoare annotation was computed. [2020-10-25 21:54:26,893 INFO L274 CegarLoopResult]: For program point L45(lines 45 47) no Hoare annotation was computed. [2020-10-25 21:54:26,893 INFO L274 CegarLoopResult]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2020-10-25 21:54:26,893 INFO L270 CegarLoopResult]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2020-10-25 21:54:26,893 INFO L274 CegarLoopResult]: For program point L112(lines 112 113) no Hoare annotation was computed. [2020-10-25 21:54:26,893 INFO L270 CegarLoopResult]: At program point L162(lines 25 163) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) [2020-10-25 21:54:26,893 INFO L270 CegarLoopResult]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2020-10-25 21:54:26,893 INFO L274 CegarLoopResult]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2020-10-25 21:54:26,893 INFO L274 CegarLoopResult]: For program point L147(lines 147 153) no Hoare annotation was computed. [2020-10-25 21:54:26,894 INFO L274 CegarLoopResult]: For program point L81(lines 81 87) no Hoare annotation was computed. [2020-10-25 21:54:26,894 INFO L274 CegarLoopResult]: For program point L48(lines 48 53) no Hoare annotation was computed. [2020-10-25 21:54:26,894 INFO L274 CegarLoopResult]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2020-10-25 21:54:26,894 INFO L274 CegarLoopResult]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2020-10-25 21:54:26,894 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:54:26,894 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:54:26,894 INFO L274 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2020-10-25 21:54:26,894 INFO L274 CegarLoopResult]: For program point L66(lines 25 163) no Hoare annotation was computed. [2020-10-25 21:54:26,895 INFO L277 CegarLoopResult]: At program point L182(lines 165 183) the Hoare annotation is: true [2020-10-25 21:54:26,895 INFO L274 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2020-10-25 21:54:26,895 INFO L274 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-10-25 21:54:26,895 INFO L270 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-10-25 21:54:26,895 INFO L274 CegarLoopResult]: For program point L134(lines 134 161) no Hoare annotation was computed. [2020-10-25 21:54:26,895 INFO L274 CegarLoopResult]: For program point L35(lines 35 40) no Hoare annotation was computed. [2020-10-25 21:54:26,895 INFO L274 CegarLoopResult]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2020-10-25 21:54:26,895 INFO L274 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-10-25 21:54:26,912 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:54:26,914 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:54:26,914 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:54:26,914 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:54:26,916 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:54:26,916 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:54:26,917 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:54:26,917 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:54:26,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:54:26 BoogieIcfgContainer [2020-10-25 21:54:26,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:54:26,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:54:26,928 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:54:26,928 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:54:26,929 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:53:46" (3/4) ... [2020-10-25 21:54:26,933 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:54:26,951 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 21:54:26,951 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-10-25 21:54:26,952 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:54:26,953 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:54:27,030 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:54:27,030 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:54:27,032 INFO L168 Benchmark]: Toolchain (without parser) took 45494.60 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 24.8 MB in the end (delta: -3.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:27,033 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory was 27.3 MB in the beginning and 27.3 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:54:27,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 463.39 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 29.4 MB in the beginning and 35.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:27,035 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.07 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 33.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:27,036 INFO L168 Benchmark]: Boogie Preprocessor took 77.34 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 30.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:27,039 INFO L168 Benchmark]: RCFGBuilder took 4110.74 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 29.8 MB in the end (delta: 614.3 kB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:27,041 INFO L168 Benchmark]: TraceAbstraction took 40617.39 ms. Allocated memory is still 54.5 MB. Free memory was 29.5 MB in the beginning and 27.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:27,042 INFO L168 Benchmark]: Witness Printer took 103.09 ms. Allocated memory is still 54.5 MB. Free memory was 27.9 MB in the beginning and 24.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:27,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory was 27.3 MB in the beginning and 27.3 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 463.39 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 29.4 MB in the beginning and 35.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.07 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 33.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.34 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 30.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4110.74 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 29.8 MB in the end (delta: 614.3 kB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 40617.39 ms. Allocated memory is still 54.5 MB. Free memory was 29.5 MB in the beginning and 27.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Witness Printer took 103.09 ms. Allocated memory is still 54.5 MB. Free memory was 27.9 MB in the beginning and 24.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant [2020-10-25 21:54:27,065 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:54:27,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:54:27,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:54:27,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:54:27,066 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:54:27,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:54:27,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:54:27,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) && 1bv32 == \result - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 35.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 17.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 159 SDtfs, 8 SDslu, 342 SDs, 0 SdLazy, 30 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 25.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 33 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 5.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 14.5s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 14 QuantifiedInterpolants, 5495 SizeOfPredicates, 19 NumberOfNonLiveVariables, 215 ConjunctsInSsa, 21 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...