./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb ........................................................................................................................................................................................................................................................................................................................................ 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_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:51:43,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:51:43,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:51:43,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:51:43,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:51:43,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:51:43,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:51:43,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:51:43,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:51:43,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:51:43,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:51:43,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:51:43,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:51:43,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:51:43,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:51:43,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:51:43,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:51:43,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:51:43,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:51:43,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:51:43,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:51:43,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:51:43,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:51:43,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:51:43,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:51:43,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:51:43,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:51:43,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:51:43,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:51:43,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:51:43,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:51:43,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:51:43,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:51:43,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:51:43,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:51:43,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:51:43,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:51:43,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:51:43,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:51:43,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:51:43,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:51:43,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:51:43,545 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:51:43,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:51:43,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:51:43,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:51:43,547 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:51:43,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:51:43,547 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:51:43,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:51:43,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:51:43,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:51:43,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:51:43,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:51:43,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:51:43,549 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:51:43,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:51:43,549 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:51:43,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:51:43,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:51:43,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:51:43,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:51:43,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:51:43,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:51:43,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:51:43,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:51:43,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:51:43,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:51:43,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:51:43,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:51:43,552 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_02618446-8cce-4181-aabd-58055f741a8a/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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-11-20 10:51:43,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:51:43,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:51:43,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:51:43,806 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:51:43,807 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:51:43,809 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-20 10:51:43,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/data/d49c162ca/4e998af005204aad9e4c30a4586271a2/FLAG3d778cb88 [2019-11-20 10:51:44,403 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:51:44,404 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-20 10:51:44,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/data/d49c162ca/4e998af005204aad9e4c30a4586271a2/FLAG3d778cb88 [2019-11-20 10:51:44,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/data/d49c162ca/4e998af005204aad9e4c30a4586271a2 [2019-11-20 10:51:44,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:51:44,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:51:44,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:51:44,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:51:44,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:51:44,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:44" (1/1) ... [2019-11-20 10:51:44,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389382a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:44, skipping insertion in model container [2019-11-20 10:51:44,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:44" (1/1) ... [2019-11-20 10:51:44,748 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:51:44,783 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:51:45,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:51:45,196 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:51:45,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:51:45,273 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:51:45,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45 WrapperNode [2019-11-20 10:51:45,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:51:45,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:51:45,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:51:45,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:51:45,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45" (1/1) ... [2019-11-20 10:51:45,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45" (1/1) ... [2019-11-20 10:51:45,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:51:45,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:51:45,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:51:45,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:51:45,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45" (1/1) ... [2019-11-20 10:51:45,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45" (1/1) ... [2019-11-20 10:51:45,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45" (1/1) ... [2019-11-20 10:51:45,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45" (1/1) ... [2019-11-20 10:51:45,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45" (1/1) ... [2019-11-20 10:51:45,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45" (1/1) ... [2019-11-20 10:51:45,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45" (1/1) ... [2019-11-20 10:51:45,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:51:45,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:51:45,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:51:45,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:51:45,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/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 [2019-11-20 10:51:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 10:51:45,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:51:45,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 10:51:45,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:51:45,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:51:45,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:51:45,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:51:45,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:51:46,261 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:51:46,262 INFO L285 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-20 10:51:46,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:46 BoogieIcfgContainer [2019-11-20 10:51:46,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:51:46,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:51:46,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:51:46,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:51:46,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:51:44" (1/3) ... [2019-11-20 10:51:46,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746e164d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:51:46, skipping insertion in model container [2019-11-20 10:51:46,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:45" (2/3) ... [2019-11-20 10:51:46,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746e164d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:51:46, skipping insertion in model container [2019-11-20 10:51:46,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:46" (3/3) ... [2019-11-20 10:51:46,272 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-11-20 10:51:46,283 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:51:46,291 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:51:46,303 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:51:46,330 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:51:46,331 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:51:46,331 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:51:46,331 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:51:46,331 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:51:46,331 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:51:46,331 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:51:46,332 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:51:46,350 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-11-20 10:51:46,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 10:51:46,357 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:51:46,358 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:51:46,358 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:51:46,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:51:46,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-11-20 10:51:46,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:51:46,376 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506626264] [2019-11-20 10:51:46,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:51:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:51:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:51:46,518 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506626264] [2019-11-20 10:51:46,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:51:46,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:51:46,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854628258] [2019-11-20 10:51:46,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 10:51:46,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:51:46,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 10:51:46,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:51:46,543 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-11-20 10:51:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:51:46,564 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-11-20 10:51:46,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 10:51:46,566 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-20 10:51:46,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:51:46,576 INFO L225 Difference]: With dead ends: 86 [2019-11-20 10:51:46,577 INFO L226 Difference]: Without dead ends: 41 [2019-11-20 10:51:46,580 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:51:46,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-20 10:51:46,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-20 10:51:46,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-20 10:51:46,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-11-20 10:51:46,620 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-11-20 10:51:46,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:51:46,620 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-11-20 10:51:46,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 10:51:46,621 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-11-20 10:51:46,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 10:51:46,622 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:51:46,622 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:51:46,623 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:51:46,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:51:46,623 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-11-20 10:51:46,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:51:46,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090000312] [2019-11-20 10:51:46,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:51:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:51:46,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:51:46,724 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090000312] [2019-11-20 10:51:46,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:51:46,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 10:51:46,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126204163] [2019-11-20 10:51:46,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:51:46,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:51:46,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:51:46,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:51:46,727 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 3 states. [2019-11-20 10:51:46,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:51:46,753 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2019-11-20 10:51:46,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:51:46,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-20 10:51:46,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:51:46,755 INFO L225 Difference]: With dead ends: 44 [2019-11-20 10:51:46,756 INFO L226 Difference]: Without dead ends: 41 [2019-11-20 10:51:46,756 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:51:46,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-20 10:51:46,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-20 10:51:46,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-20 10:51:46,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2019-11-20 10:51:46,764 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 15 [2019-11-20 10:51:46,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:51:46,764 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2019-11-20 10:51:46,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:51:46,765 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2019-11-20 10:51:46,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 10:51:46,766 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:51:46,766 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:51:46,766 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:51:46,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:51:46,767 INFO L82 PathProgramCache]: Analyzing trace with hash -371067880, now seen corresponding path program 1 times [2019-11-20 10:51:46,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:51:46,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411910902] [2019-11-20 10:51:46,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:51:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:51:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:51:46,955 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:51:46,955 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:51:46,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:51:46 BoogieIcfgContainer [2019-11-20 10:51:46,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:51:46,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:51:46,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:51:46,994 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:51:46,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:46" (3/4) ... [2019-11-20 10:51:46,999 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:51:46,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:51:47,001 INFO L168 Benchmark]: Toolchain (without parser) took 2275.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -124.3 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:47,001 INFO L168 Benchmark]: CDTParser took 0.33 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. [2019-11-20 10:51:47,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 951.5 MB in the beginning and 1.2 GB in the end (delta: -201.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:47,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.39 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:47,004 INFO L168 Benchmark]: Boogie Preprocessor took 100.03 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:47,005 INFO L168 Benchmark]: RCFGBuilder took 810.50 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:47,005 INFO L168 Benchmark]: TraceAbstraction took 729.10 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:47,006 INFO L168 Benchmark]: Witness Printer took 4.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:51:47,010 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 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 544.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 951.5 MB in the beginning and 1.2 GB in the end (delta: -201.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.39 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 100.03 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 810.50 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 729.10 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1] [L29] COND TRUE j0 < 20 VAL [one_modf=1] [L30] COND TRUE j0 < 0 VAL [one_modf=1] [L32] ieee_double_shape_type iw_u; [L33] iw_u.parts.msw = (i0 & 0x80000000) [L34] iw_u.parts.lsw = (0) [L35] EXPR iw_u.value [L35] (*iptr) = iw_u.value [L37] return x; VAL [one_modf=1] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 10:51:49,369 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-20 10:51:49,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:51:49,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:51:49,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:51:49,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:51:49,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:51:49,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:51:49,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:51:49,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:51:49,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:51:49,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:51:49,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:51:49,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 10:51:49,507 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:51:49,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:51:49,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:51:49,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:51:49,509 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:51:49,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:51:49,510 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:51:49,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:51:49,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:51:49,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:51:49,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:51:49,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:51:49,511 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 10:51:49,512 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 10:51:49,512 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:51:49,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:51:49,512 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:51:49,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:51:49,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:51:49,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:51:49,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:51:49,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:51:49,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:51:49,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:51:49,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:51:49,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:51:49,515 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 10:51:49,515 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 10:51:49,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:51:49,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 10:51:49,516 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_02618446-8cce-4181-aabd-58055f741a8a/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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-11-20 10:51:49,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:51:49,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:51:49,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:51:49,929 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:51:49,930 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:51:49,931 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-20 10:51:50,003 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/data/443cc3c66/337d4b9add3f4a75b503d881983effef/FLAGd1426e8a6 [2019-11-20 10:51:50,497 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:51:50,498 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-20 10:51:50,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/data/443cc3c66/337d4b9add3f4a75b503d881983effef/FLAGd1426e8a6 [2019-11-20 10:51:50,843 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/data/443cc3c66/337d4b9add3f4a75b503d881983effef [2019-11-20 10:51:50,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:51:50,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:51:50,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:51:50,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:51:50,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:51:50,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:50" (1/1) ... [2019-11-20 10:51:50,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e376faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:50, skipping insertion in model container [2019-11-20 10:51:50,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:50" (1/1) ... [2019-11-20 10:51:50,866 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:51:50,889 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:51:51,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:51:51,178 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:51:51,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:51:51,341 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:51:51,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51 WrapperNode [2019-11-20 10:51:51,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:51:51,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:51:51,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:51:51,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:51:51,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51" (1/1) ... [2019-11-20 10:51:51,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51" (1/1) ... [2019-11-20 10:51:51,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:51:51,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:51:51,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:51:51,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:51:51,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51" (1/1) ... [2019-11-20 10:51:51,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51" (1/1) ... [2019-11-20 10:51:51,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51" (1/1) ... [2019-11-20 10:51:51,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51" (1/1) ... [2019-11-20 10:51:51,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51" (1/1) ... [2019-11-20 10:51:51,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51" (1/1) ... [2019-11-20 10:51:51,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51" (1/1) ... [2019-11-20 10:51:51,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:51:51,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:51:51,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:51:51,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:51:51,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/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 [2019-11-20 10:51:51,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 10:51:51,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 10:51:51,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-20 10:51:51,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:51:51,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:51:51,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:51:51,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 10:51:51,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:51:52,887 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:51:52,888 INFO L285 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-20 10:51:52,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:52 BoogieIcfgContainer [2019-11-20 10:51:52,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:51:52,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:51:52,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:51:52,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:51:52,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:51:50" (1/3) ... [2019-11-20 10:51:52,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443b65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:51:52, skipping insertion in model container [2019-11-20 10:51:52,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:51" (2/3) ... [2019-11-20 10:51:52,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443b65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:51:52, skipping insertion in model container [2019-11-20 10:51:52,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:52" (3/3) ... [2019-11-20 10:51:52,900 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-11-20 10:51:52,916 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:51:52,925 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:51:52,937 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:51:52,965 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:51:52,966 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:51:52,966 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:51:52,966 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:51:52,966 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:51:52,966 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:51:52,967 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:51:52,967 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:51:52,984 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-11-20 10:51:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 10:51:52,992 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:51:52,993 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:51:52,994 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:51:53,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:51:53,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-11-20 10:51:53,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:51:53,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73023302] [2019-11-20 10:51:53,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/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 [2019-11-20 10:51:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:51:53,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 10:51:53,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:51:53,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:51:53,174 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:51:53,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:51:53,187 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73023302] [2019-11-20 10:51:53,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:51:53,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 10:51:53,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82786276] [2019-11-20 10:51:53,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 10:51:53,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:51:53,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 10:51:53,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:51:53,207 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-11-20 10:51:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:51:53,229 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-11-20 10:51:53,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 10:51:53,233 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-20 10:51:53,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:51:53,253 INFO L225 Difference]: With dead ends: 86 [2019-11-20 10:51:53,253 INFO L226 Difference]: Without dead ends: 41 [2019-11-20 10:51:53,257 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:51:53,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-20 10:51:53,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-20 10:51:53,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-20 10:51:53,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-11-20 10:51:53,292 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-11-20 10:51:53,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:51:53,292 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-11-20 10:51:53,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 10:51:53,293 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-11-20 10:51:53,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 10:51:53,294 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:51:53,294 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:51:53,496 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 10:51:53,500 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:51:53,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:51:53,500 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-11-20 10:51:53,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:51:53,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961595352] [2019-11-20 10:51:53,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/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 [2019-11-20 10:51:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:51:53,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 10:51:53,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:51:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:51:53,780 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:51:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:51:53,932 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961595352] [2019-11-20 10:51:53,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:51:53,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 10:51:53,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951899146] [2019-11-20 10:51:53,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 10:51:53,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:51:53,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 10:51:53,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 10:51:53,938 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 8 states. [2019-11-20 10:51:54,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:51:54,752 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2019-11-20 10:51:54,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 10:51:54,753 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-20 10:51:54,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:51:54,754 INFO L225 Difference]: With dead ends: 48 [2019-11-20 10:51:54,755 INFO L226 Difference]: Without dead ends: 19 [2019-11-20 10:51:54,756 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-20 10:51:54,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-20 10:51:54,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-20 10:51:54,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 10:51:54,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-20 10:51:54,769 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2019-11-20 10:51:54,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:51:54,770 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-20 10:51:54,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 10:51:54,770 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-20 10:51:54,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 10:51:54,771 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:51:54,771 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:51:54,972 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 10:51:54,972 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:51:54,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:51:54,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1834889353, now seen corresponding path program 1 times [2019-11-20 10:51:54,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:51:54,974 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430198084] [2019-11-20 10:51:54,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/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 [2019-11-20 10:51:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:51:55,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:51:55,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:51:55,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:51:55,396 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:51:55,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:51:55,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430198084] [2019-11-20 10:51:55,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:51:55,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-20 10:51:55,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784945250] [2019-11-20 10:51:55,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:51:55,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:51:55,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:51:55,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:51:55,401 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2019-11-20 10:51:55,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:51:55,428 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-11-20 10:51:55,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:51:55,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 10:51:55,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:51:55,430 INFO L225 Difference]: With dead ends: 22 [2019-11-20 10:51:55,431 INFO L226 Difference]: Without dead ends: 19 [2019-11-20 10:51:55,431 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:51:55,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-20 10:51:55,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-20 10:51:55,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 10:51:55,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-11-20 10:51:55,437 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2019-11-20 10:51:55,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:51:55,438 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-11-20 10:51:55,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:51:55,438 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-11-20 10:51:55,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 10:51:55,439 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:51:55,439 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:51:55,660 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 10:51:55,661 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:51:55,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:51:55,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1046870301, now seen corresponding path program 1 times [2019-11-20 10:51:55,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:51:55,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354920841] [2019-11-20 10:51:55,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-20 10:51:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:51:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:51:56,795 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-20 10:51:56,795 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:51:56,996 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 10:51:57,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:51:57 BoogieIcfgContainer [2019-11-20 10:51:57,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:51:57,046 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:51:57,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:51:57,046 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:51:57,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:52" (3/4) ... [2019-11-20 10:51:57,050 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 10:51:57,143 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_02618446-8cce-4181-aabd-58055f741a8a/bin/uautomizer/witness.graphml [2019-11-20 10:51:57,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:51:57,146 INFO L168 Benchmark]: Toolchain (without parser) took 6297.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 955.1 MB in the beginning and 989.1 MB in the end (delta: -34.0 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:57,147 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:51:57,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:57,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:51:57,149 INFO L168 Benchmark]: Boogie Preprocessor took 51.04 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:57,149 INFO L168 Benchmark]: RCFGBuilder took 1438.31 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: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:57,150 INFO L168 Benchmark]: TraceAbstraction took 4154.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.1 MB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:57,150 INFO L168 Benchmark]: Witness Printer took 98.42 ms. Allocated memory is still 1.2 GB. Free memory is still 989.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:51:57,153 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 493.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.04 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1438.31 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: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4154.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.1 MB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. * Witness Printer took 98.42 ms. Allocated memory is still 1.2 GB. Free memory is still 989.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 122]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1.0] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1.0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1.0] [L29] COND FALSE !(j0 < 20) VAL [one_modf=1.0] [L65] COND TRUE j0 > 51 [L66] __uint32_t high; [L67] *iptr = x * one_modf VAL [one_modf=1.0] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (high) = gh_u.parts.msw [L74] ieee_double_shape_type iw_u; [L75] iw_u.parts.msw = (high & 0x80000000) [L76] iw_u.parts.lsw = (0) [L77] EXPR iw_u.value [L77] (x) = iw_u.value [L79] return x; VAL [one_modf=1.0] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1.0] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 50 SDslu, 35 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 4 QuantifiedInterpolants, 2694 SizeOfPredicates, 6 NumberOfNonLiveVariables, 171 ConjunctsInSsa, 11 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 incorrect! Received shutdown request...