./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5cd93119259b478e9ace2ae93fde799beac44478 ................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5cd93119259b478e9ace2ae93fde799beac44478 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:44:21,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:44:21,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:44:21,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:44:21,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:44:21,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:44:21,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:44:21,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:44:21,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:44:21,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:44:21,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:44:21,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:44:21,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:44:21,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:44:21,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:44:21,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:44:21,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:44:21,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:44:21,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:44:21,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:44:21,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:44:21,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:44:21,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:44:21,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:44:21,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:44:21,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:44:21,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:44:21,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:44:21,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:44:21,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:44:21,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:44:21,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:44:21,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:44:21,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:44:21,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:44:21,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:44:21,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:44:21,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:44:21,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:44:21,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:44:21,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:44:21,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:44:21,512 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:44:21,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:44:21,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:44:21,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:44:21,514 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:44:21,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:44:21,515 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:44:21,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:44:21,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:44:21,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:44:21,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:44:21,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:44:21,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:44:21,516 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:44:21,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:44:21,517 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:44:21,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:44:21,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:44:21,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:44:21,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:44:21,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:44:21,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:44:21,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:44:21,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:44:21,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:44:21,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:44:21,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:44:21,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:44:21,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cd93119259b478e9ace2ae93fde799beac44478 [2019-11-16 00:44:21,562 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:44:21,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:44:21,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:44:21,585 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:44:21,585 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:44:21,591 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-16 00:44:21,648 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/data/745a26769/691c57039386488caf306ccb184c9402/FLAGe7e88402c [2019-11-16 00:44:22,089 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:44:22,090 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-16 00:44:22,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/data/745a26769/691c57039386488caf306ccb184c9402/FLAGe7e88402c [2019-11-16 00:44:22,473 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/data/745a26769/691c57039386488caf306ccb184c9402 [2019-11-16 00:44:22,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:44:22,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:44:22,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:44:22,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:44:22,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:44:22,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:44:22" (1/1) ... [2019-11-16 00:44:22,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4733045f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22, skipping insertion in model container [2019-11-16 00:44:22,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:44:22" (1/1) ... [2019-11-16 00:44:22,494 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:44:22,522 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:44:22,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:44:22,882 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:44:22,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:44:22,940 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:44:22,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22 WrapperNode [2019-11-16 00:44:22,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:44:22,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:44:22,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:44:22,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:44:22,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22" (1/1) ... [2019-11-16 00:44:22,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22" (1/1) ... [2019-11-16 00:44:22,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:44:22,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:44:22,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:44:22,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:44:23,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22" (1/1) ... [2019-11-16 00:44:23,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22" (1/1) ... [2019-11-16 00:44:23,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22" (1/1) ... [2019-11-16 00:44:23,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22" (1/1) ... [2019-11-16 00:44:23,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22" (1/1) ... [2019-11-16 00:44:23,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22" (1/1) ... [2019-11-16 00:44:23,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22" (1/1) ... [2019-11-16 00:44:23,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:44:23,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:44:23,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:44:23,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:44:23,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:44:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:44:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:44:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-16 00:44:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-16 00:44:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:44:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:44:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:44:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-16 00:44:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:44:23,511 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:44:23,512 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-16 00:44:23,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:44:23 BoogieIcfgContainer [2019-11-16 00:44:23,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:44:23,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:44:23,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:44:23,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:44:23,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:44:22" (1/3) ... [2019-11-16 00:44:23,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a29198d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:44:23, skipping insertion in model container [2019-11-16 00:44:23,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:22" (2/3) ... [2019-11-16 00:44:23,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a29198d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:44:23, skipping insertion in model container [2019-11-16 00:44:23,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:44:23" (3/3) ... [2019-11-16 00:44:23,522 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2019-11-16 00:44:23,530 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:44:23,535 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:44:23,544 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:44:23,566 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:44:23,566 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:44:23,566 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:44:23,567 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:44:23,567 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:44:23,567 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:44:23,567 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:44:23,567 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:44:23,580 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-16 00:44:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:44:23,585 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:44:23,586 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:44:23,587 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:44:23,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:44:23,592 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-16 00:44:23,600 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:44:23,600 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096252797] [2019-11-16 00:44:23,600 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:44:23,600 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:44:23,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:44:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:44:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:44:23,712 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096252797] [2019-11-16 00:44:23,713 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:44:23,713 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:44:23,713 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484225279] [2019-11-16 00:44:23,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:44:23,717 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:44:23,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:44:23,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:44:23,730 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-16 00:44:23,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:44:23,748 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-16 00:44:23,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:44:23,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-16 00:44:23,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:44:23,759 INFO L225 Difference]: With dead ends: 82 [2019-11-16 00:44:23,759 INFO L226 Difference]: Without dead ends: 39 [2019-11-16 00:44:23,762 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:44:23,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-16 00:44:23,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-16 00:44:23,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:44:23,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-16 00:44:23,797 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-16 00:44:23,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:44:23,798 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-16 00:44:23,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:44:23,798 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-16 00:44:23,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-16 00:44:23,799 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:44:23,799 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:44:23,799 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:44:23,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:44:23,800 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-16 00:44:23,800 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:44:23,800 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251389398] [2019-11-16 00:44:23,800 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:44:23,800 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:44:23,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:44:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:44:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:44:23,965 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:44:23,965 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:44:24,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:44:24 BoogieIcfgContainer [2019-11-16 00:44:24,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:44:24,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:44:24,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:44:24,009 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:44:24,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:44:23" (3/4) ... [2019-11-16 00:44:24,013 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:44:24,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:44:24,017 INFO L168 Benchmark]: Toolchain (without parser) took 1537.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:44:24,017 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:44:24,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -214.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:44:24,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:44:24,020 INFO L168 Benchmark]: Boogie Preprocessor took 50.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:44:24,021 INFO L168 Benchmark]: RCFGBuilder took 471.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:44:24,022 INFO L168 Benchmark]: TraceAbstraction took 493.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:44:24,022 INFO L168 Benchmark]: Witness Printer took 5.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:44:24,035 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 462.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -214.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 471.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 493.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 123]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseXor at line 31. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={1:0}] [L117] float x = 1.0f / 0.0f; [L118] float y = __VERIFIER_nondet_float(); [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={1:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={1:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={1:0}] [L119] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={1:0}] [L122] COND TRUE !isnan_float(res) [L123] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 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=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-16 00:44:26,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:44:26,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:44:26,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:44:26,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:44:26,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:44:26,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:44:26,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:44:26,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:44:26,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:44:26,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:44:26,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:44:26,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:44:26,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:44:26,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:44:26,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:44:26,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:44:26,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:44:26,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:44:26,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:44:26,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:44:26,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:44:26,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:44:26,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:44:26,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:44:26,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:44:26,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:44:26,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:44:26,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:44:26,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:44:26,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:44:26,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:44:26,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:44:26,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:44:26,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:44:26,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:44:26,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:44:26,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:44:26,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:44:26,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:44:26,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:44:26,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:44:26,545 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:44:26,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:44:26,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:44:26,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:44:26,547 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:44:26,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:44:26,547 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:44:26,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:44:26,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:44:26,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:44:26,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:44:26,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:44:26,549 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:44:26,549 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:44:26,549 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:44:26,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:44:26,550 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:44:26,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:44:26,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:44:26,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:44:26,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:44:26,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:44:26,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:44:26,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:44:26,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:44:26,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:44:26,552 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:44:26,552 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:44:26,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:44:26,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:44:26,553 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cd93119259b478e9ace2ae93fde799beac44478 [2019-11-16 00:44:26,585 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:44:26,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:44:26,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:44:26,602 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:44:26,602 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:44:26,603 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-16 00:44:26,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/data/e1b2a3bbb/ebb9aff5ccaa41c9882b80c0661f7ebf/FLAG4a05119d0 [2019-11-16 00:44:27,077 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:44:27,077 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-16 00:44:27,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/data/e1b2a3bbb/ebb9aff5ccaa41c9882b80c0661f7ebf/FLAG4a05119d0 [2019-11-16 00:44:27,487 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/data/e1b2a3bbb/ebb9aff5ccaa41c9882b80c0661f7ebf [2019-11-16 00:44:27,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:44:27,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:44:27,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:44:27,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:44:27,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:44:27,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:44:27" (1/1) ... [2019-11-16 00:44:27,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fa8968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27, skipping insertion in model container [2019-11-16 00:44:27,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:44:27" (1/1) ... [2019-11-16 00:44:27,506 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:44:27,529 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:44:27,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:44:27,757 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:44:27,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:44:27,880 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:44:27,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27 WrapperNode [2019-11-16 00:44:27,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:44:27,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:44:27,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:44:27,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:44:27,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27" (1/1) ... [2019-11-16 00:44:27,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27" (1/1) ... [2019-11-16 00:44:27,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:44:27,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:44:27,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:44:27,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:44:27,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27" (1/1) ... [2019-11-16 00:44:27,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27" (1/1) ... [2019-11-16 00:44:27,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27" (1/1) ... [2019-11-16 00:44:27,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27" (1/1) ... [2019-11-16 00:44:27,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27" (1/1) ... [2019-11-16 00:44:27,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27" (1/1) ... [2019-11-16 00:44:27,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27" (1/1) ... [2019-11-16 00:44:27,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:44:27,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:44:27,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:44:27,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:44:27,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:44:28,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-16 00:44:28,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:44:28,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-16 00:44:28,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-16 00:44:28,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:44:28,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:44:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-16 00:44:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:44:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:44:29,758 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:44:29,759 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-16 00:44:29,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:44:29 BoogieIcfgContainer [2019-11-16 00:44:29,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:44:29,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:44:29,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:44:29,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:44:29,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:44:27" (1/3) ... [2019-11-16 00:44:29,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19afec2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:44:29, skipping insertion in model container [2019-11-16 00:44:29,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:27" (2/3) ... [2019-11-16 00:44:29,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19afec2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:44:29, skipping insertion in model container [2019-11-16 00:44:29,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:44:29" (3/3) ... [2019-11-16 00:44:29,769 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2019-11-16 00:44:29,778 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:44:29,786 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:44:29,797 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:44:29,821 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:44:29,822 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:44:29,822 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:44:29,822 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:44:29,823 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:44:29,823 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:44:29,823 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:44:29,823 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:44:29,840 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-16 00:44:29,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:44:29,848 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:44:29,849 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:44:29,852 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:44:29,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:44:29,859 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-16 00:44:29,872 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:44:29,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292849704] [2019-11-16 00:44:29,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-16 00:44:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:44:30,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-16 00:44:30,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:44:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:44:30,198 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:44:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:44:30,207 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292849704] [2019-11-16 00:44:30,208 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:44:30,208 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-16 00:44:30,208 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702684803] [2019-11-16 00:44:30,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:44:30,213 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:44:30,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:44:30,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:44:30,229 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-16 00:44:30,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:44:30,250 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-16 00:44:30,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:44:30,252 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-16 00:44:30,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:44:30,263 INFO L225 Difference]: With dead ends: 82 [2019-11-16 00:44:30,264 INFO L226 Difference]: Without dead ends: 39 [2019-11-16 00:44:30,270 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:44:30,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-16 00:44:30,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-16 00:44:30,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:44:30,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-16 00:44:30,319 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-16 00:44:30,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:44:30,320 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-16 00:44:30,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:44:30,320 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-16 00:44:30,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-16 00:44:30,323 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:44:30,323 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:44:30,538 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:44:30,538 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:44:30,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:44:30,539 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-16 00:44:30,539 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:44:30,540 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920611704] [2019-11-16 00:44:30,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-16 00:44:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:44:30,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-16 00:44:30,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:44:32,043 WARN L191 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-11-16 00:44:32,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:44:33,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:44:33,131 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:44:53,907 WARN L191 SmtUtils]: Spent 2.36 s on a formula simplification that was a NOOP. DAG size: 8 [2019-11-16 00:44:54,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:44:54,042 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920611704] [2019-11-16 00:44:54,042 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:44:54,043 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-16 00:44:54,043 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131624418] [2019-11-16 00:44:54,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-16 00:44:54,044 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:44:54,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-16 00:44:54,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=62, Unknown=6, NotChecked=0, Total=90 [2019-11-16 00:44:54,045 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 10 states. [2019-11-16 00:44:56,473 WARN L191 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2019-11-16 00:44:57,934 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2019-11-16 00:44:58,886 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2019-11-16 00:45:06,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:45:06,867 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2019-11-16 00:45:06,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:45:06,922 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-16 00:45:06,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:45:06,923 INFO L225 Difference]: With dead ends: 49 [2019-11-16 00:45:06,923 INFO L226 Difference]: Without dead ends: 44 [2019-11-16 00:45:06,925 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 27.0s TimeCoverageRelationStatistics Valid=49, Invalid=101, Unknown=6, NotChecked=0, Total=156 [2019-11-16 00:45:06,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-16 00:45:06,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2019-11-16 00:45:06,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:45:06,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-16 00:45:06,931 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-11-16 00:45:06,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:45:06,931 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-16 00:45:06,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-16 00:45:06,932 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-16 00:45:06,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-16 00:45:06,932 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:45:06,933 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:45:07,155 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-16 00:45:07,155 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:45:07,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:45:07,156 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-11-16 00:45:07,156 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:45:07,156 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317123908] [2019-11-16 00:45:07,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-16 00:45:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:45:07,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-16 00:45:07,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:45:07,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:45:07,296 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:45:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:45:07,359 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317123908] [2019-11-16 00:45:07,360 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:45:07,360 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2019-11-16 00:45:07,360 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961391145] [2019-11-16 00:45:07,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:45:07,361 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:45:07,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:45:07,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:45:07,361 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 7 states. [2019-11-16 00:45:07,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:45:07,405 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-11-16 00:45:07,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-16 00:45:07,407 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-16 00:45:07,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:45:07,408 INFO L225 Difference]: With dead ends: 39 [2019-11-16 00:45:07,408 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:45:07,409 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:45:07,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:45:07,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:45:07,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:45:07,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:45:07,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-16 00:45:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:45:07,410 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:45:07,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:45:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:45:07,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:45:07,619 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-16 00:45:07,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-16 00:45:07,715 INFO L443 ceAbstractionStarter]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:45:07,715 INFO L443 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-11-16 00:45:07,716 INFO L446 ceAbstractionStarter]: At program point L127(lines 110 128) the Hoare annotation is: true [2019-11-16 00:45:07,716 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-16 00:45:07,716 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-16 00:45:07,716 INFO L443 ceAbstractionStarter]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-11-16 00:45:07,716 INFO L443 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-11-16 00:45:07,716 INFO L439 ceAbstractionStarter]: At program point L20-2(lines 20 24) the Hoare annotation is: (= ULTIMATE.start_fmod_float_~x (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2019-11-16 00:45:07,716 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-11-16 00:45:07,717 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2019-11-16 00:45:07,717 INFO L443 ceAbstractionStarter]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:45:07,717 INFO L439 ceAbstractionStarter]: At program point L104(lines 17 105) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~x (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|))) [2019-11-16 00:45:07,717 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-16 00:45:07,717 INFO L443 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-11-16 00:45:07,717 INFO L439 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-11-16 00:45:07,717 INFO L443 ceAbstractionStarter]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-11-16 00:45:07,718 INFO L439 ceAbstractionStarter]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-11-16 00:45:07,718 INFO L443 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-16 00:45:07,718 INFO L439 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-16 00:45:07,718 INFO L443 ceAbstractionStarter]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-11-16 00:45:07,718 INFO L443 ceAbstractionStarter]: For program point L122(lines 122 125) no Hoare annotation was computed. [2019-11-16 00:45:07,718 INFO L443 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-16 00:45:07,718 INFO L443 ceAbstractionStarter]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:45:07,718 INFO L443 ceAbstractionStarter]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-11-16 00:45:07,719 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-16 00:45:07,719 INFO L443 ceAbstractionStarter]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-11-16 00:45:07,719 INFO L443 ceAbstractionStarter]: For program point L123(line 123) no Hoare annotation was computed. [2019-11-16 00:45:07,719 INFO L439 ceAbstractionStarter]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-11-16 00:45:07,719 INFO L443 ceAbstractionStarter]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:45:07,719 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-16 00:45:07,719 INFO L439 ceAbstractionStarter]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-11-16 00:45:07,719 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-16 00:45:07,720 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-11-16 00:45:07,720 INFO L443 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-11-16 00:45:07,720 INFO L443 ceAbstractionStarter]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:45:07,720 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-11-16 00:45:07,720 INFO L439 ceAbstractionStarter]: At program point L108(line 108) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~x (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|))) [2019-11-16 00:45:07,720 INFO L443 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-16 00:45:07,720 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-16 00:45:07,721 INFO L439 ceAbstractionStarter]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-11-16 00:45:07,721 INFO L443 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-11-16 00:45:07,721 INFO L443 ceAbstractionStarter]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-11-16 00:45:07,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,762 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,762 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,763 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,763 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,764 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,764 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,765 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,765 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,766 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,766 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:45:07 BoogieIcfgContainer [2019-11-16 00:45:07,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:45:07,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:45:07,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:45:07,773 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:45:07,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:44:29" (3/4) ... [2019-11-16 00:45:07,777 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:45:07,791 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-16 00:45:07,792 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-16 00:45:07,833 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4feea77f-5fa0-4014-b26d-c6e537970bef/bin/uautomizer/witness.graphml [2019-11-16 00:45:07,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:45:07,835 INFO L168 Benchmark]: Toolchain (without parser) took 40344.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 952.3 MB in the beginning and 958.4 MB in the end (delta: -6.1 MB). Peak memory consumption was 107.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:45:07,836 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:45:07,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:45:07,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:45:07,838 INFO L168 Benchmark]: Boogie Preprocessor took 53.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:45:07,838 INFO L168 Benchmark]: RCFGBuilder took 1773.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:45:07,839 INFO L168 Benchmark]: TraceAbstraction took 38010.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 965.1 MB in the end (delta: 104.0 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:45:07,839 INFO L168 Benchmark]: Witness Printer took 61.67 ms. Allocated memory is still 1.1 GB. Free memory was 965.1 MB in the beginning and 958.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:45:07,842 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 389.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1773.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 38010.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 965.1 MB in the end (delta: 104.0 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. * Witness Printer took 61.67 ms. Allocated memory is still 1.1 GB. Free memory was 965.1 MB in the beginning and 958.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: 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: 110]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2019-11-16 00:45:07,852 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,852 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2019-11-16 00:45:07,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 17]: Loop Invariant [2019-11-16 00:45:07,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:45:07,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()) && !~fp.eq~FLOAT(\result, \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 37.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 53 SDslu, 208 SDs, 0 SdLazy, 39 SolverSat, 3 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 27.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 44 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 23.3s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 8 QuantifiedInterpolants, 4455 SizeOfPredicates, 16 NumberOfNonLiveVariables, 148 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...