./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/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: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/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 0.1.23-635dfa2 [2018-12-08 15:51:06,280 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 15:51:06,281 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 15:51:06,289 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 15:51:06,290 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 15:51:06,290 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 15:51:06,291 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 15:51:06,293 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 15:51:06,294 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 15:51:06,294 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 15:51:06,295 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 15:51:06,295 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 15:51:06,296 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 15:51:06,296 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 15:51:06,297 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 15:51:06,298 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 15:51:06,298 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 15:51:06,300 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 15:51:06,301 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 15:51:06,302 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 15:51:06,303 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 15:51:06,304 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 15:51:06,306 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 15:51:06,306 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 15:51:06,306 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 15:51:06,307 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 15:51:06,308 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 15:51:06,308 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 15:51:06,309 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 15:51:06,310 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 15:51:06,310 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 15:51:06,310 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 15:51:06,311 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 15:51:06,311 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 15:51:06,311 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 15:51:06,312 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 15:51:06,312 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 15:51:06,322 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 15:51:06,323 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 15:51:06,323 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 15:51:06,323 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 15:51:06,324 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 15:51:06,324 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 15:51:06,324 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 15:51:06,324 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 15:51:06,325 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 15:51:06,325 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 15:51:06,325 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 15:51:06,325 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 15:51:06,325 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 15:51:06,325 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 15:51:06,325 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 15:51:06,326 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 15:51:06,326 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 15:51:06,326 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 15:51:06,326 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 15:51:06,326 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 15:51:06,326 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 15:51:06,327 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 15:51:06,327 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 15:51:06,327 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:51:06,327 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 15:51:06,327 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 15:51:06,327 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 15:51:06,327 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 15:51:06,327 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 15:51:06,328 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 15:51:06,328 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/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 [2018-12-08 15:51:06,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 15:51:06,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 15:51:06,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 15:51:06,364 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 15:51:06,364 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 15:51:06,364 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-12-08 15:51:06,402 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/data/5ef0bb810/24fae8c8a3984a3cb82e5b49dc2e77de/FLAGe82815908 [2018-12-08 15:51:06,797 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 15:51:06,797 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-12-08 15:51:06,801 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/data/5ef0bb810/24fae8c8a3984a3cb82e5b49dc2e77de/FLAGe82815908 [2018-12-08 15:51:06,808 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/data/5ef0bb810/24fae8c8a3984a3cb82e5b49dc2e77de [2018-12-08 15:51:06,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 15:51:06,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 15:51:06,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 15:51:06,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 15:51:06,813 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 15:51:06,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:51:06" (1/1) ... [2018-12-08 15:51:06,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5080051a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06, skipping insertion in model container [2018-12-08 15:51:06,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:51:06" (1/1) ... [2018-12-08 15:51:06,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 15:51:06,830 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 15:51:06,925 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:51:06,931 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 15:51:06,952 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:51:06,990 INFO L195 MainTranslator]: Completed translation [2018-12-08 15:51:06,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06 WrapperNode [2018-12-08 15:51:06,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 15:51:06,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 15:51:06,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 15:51:06,991 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 15:51:06,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06" (1/1) ... [2018-12-08 15:51:07,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06" (1/1) ... [2018-12-08 15:51:07,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 15:51:07,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 15:51:07,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 15:51:07,006 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 15:51:07,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06" (1/1) ... [2018-12-08 15:51:07,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06" (1/1) ... [2018-12-08 15:51:07,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06" (1/1) ... [2018-12-08 15:51:07,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06" (1/1) ... [2018-12-08 15:51:07,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06" (1/1) ... [2018-12-08 15:51:07,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06" (1/1) ... [2018-12-08 15:51:07,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06" (1/1) ... [2018-12-08 15:51:07,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 15:51:07,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 15:51:07,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 15:51:07,031 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 15:51:07,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/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 [2018-12-08 15:51:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 15:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 15:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-08 15:51:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-08 15:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 15:51:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 15:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 15:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 15:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 15:51:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 15:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 15:51:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 15:51:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 15:51:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2018-12-08 15:51:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2018-12-08 15:51:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 15:51:07,291 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 15:51:07,292 INFO L280 CfgBuilder]: Removed 20 assue(true) statements. [2018-12-08 15:51:07,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:51:07 BoogieIcfgContainer [2018-12-08 15:51:07,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 15:51:07,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 15:51:07,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 15:51:07,294 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 15:51:07,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:51:06" (1/3) ... [2018-12-08 15:51:07,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb98793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:51:07, skipping insertion in model container [2018-12-08 15:51:07,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:06" (2/3) ... [2018-12-08 15:51:07,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb98793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:51:07, skipping insertion in model container [2018-12-08 15:51:07,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:51:07" (3/3) ... [2018-12-08 15:51:07,297 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210_false-unreach-call.c [2018-12-08 15:51:07,302 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 15:51:07,307 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 15:51:07,316 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 15:51:07,334 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 15:51:07,335 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 15:51:07,335 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 15:51:07,335 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 15:51:07,335 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 15:51:07,335 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 15:51:07,335 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 15:51:07,335 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 15:51:07,335 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 15:51:07,346 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-12-08 15:51:07,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 15:51:07,349 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:07,350 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:51:07,351 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:07,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:07,355 INFO L82 PathProgramCache]: Analyzing trace with hash 204549601, now seen corresponding path program 1 times [2018-12-08 15:51:07,356 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:51:07,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:51:07,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:07,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:07,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:51:07,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:51:07,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 15:51:07,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 15:51:07,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 15:51:07,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 15:51:07,447 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-12-08 15:51:07,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:51:07,462 INFO L93 Difference]: Finished difference Result 108 states and 162 transitions. [2018-12-08 15:51:07,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 15:51:07,462 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-12-08 15:51:07,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:51:07,468 INFO L225 Difference]: With dead ends: 108 [2018-12-08 15:51:07,468 INFO L226 Difference]: Without dead ends: 54 [2018-12-08 15:51:07,470 INFO L631 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 [2018-12-08 15:51:07,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-08 15:51:07,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-12-08 15:51:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-08 15:51:07,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-12-08 15:51:07,494 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 25 [2018-12-08 15:51:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:51:07,494 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-12-08 15:51:07,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 15:51:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-12-08 15:51:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 15:51:07,495 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:07,496 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:51:07,496 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:07,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:07,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1987482264, now seen corresponding path program 1 times [2018-12-08 15:51:07,496 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:51:07,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:51:07,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:07,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:07,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:51:07,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:51:07,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 15:51:07,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:51:07,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:51:07,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:51:07,546 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 3 states. [2018-12-08 15:51:07,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:51:07,557 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-12-08 15:51:07,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:51:07,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-12-08 15:51:07,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:51:07,558 INFO L225 Difference]: With dead ends: 57 [2018-12-08 15:51:07,558 INFO L226 Difference]: Without dead ends: 54 [2018-12-08 15:51:07,559 INFO L631 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 [2018-12-08 15:51:07,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-08 15:51:07,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-12-08 15:51:07,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-08 15:51:07,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-12-08 15:51:07,562 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 27 [2018-12-08 15:51:07,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:51:07,564 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-12-08 15:51:07,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:51:07,564 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-12-08 15:51:07,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 15:51:07,565 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:07,565 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:51:07,565 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:07,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:07,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1590755806, now seen corresponding path program 1 times [2018-12-08 15:51:07,565 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:51:07,565 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:51:07,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:07,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:07,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:51:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:51:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:51:07,621 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 15:51:07,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:51:07 BoogieIcfgContainer [2018-12-08 15:51:07,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 15:51:07,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 15:51:07,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 15:51:07,644 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 15:51:07,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:51:07" (3/4) ... [2018-12-08 15:51:07,647 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 15:51:07,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 15:51:07,647 INFO L168 Benchmark]: Toolchain (without parser) took 837.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 962.4 MB in the beginning and 1.0 GB in the end (delta: -79.4 MB). Peak memory consumption was 54.3 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:07,649 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:51:07,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:07,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.87 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:07,650 INFO L168 Benchmark]: Boogie Preprocessor took 23.94 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. [2018-12-08 15:51:07,650 INFO L168 Benchmark]: RCFGBuilder took 261.58 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: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:07,651 INFO L168 Benchmark]: TraceAbstraction took 351.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:07,651 INFO L168 Benchmark]: Witness Printer took 3.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:07,653 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.87 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.94 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. * RCFGBuilder took 261.58 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: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 351.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. 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 [\old(one_modf)=10737418246, one_modf=1] [L116] double x = 0.0 / 0.0; [L117] double iptr; VAL [iptr={10737418250:0}, one_modf=1] [L118] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=10737418254, iptr={10737418250:0}, one_modf=1] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [\old(x)=10737418254, iptr={10737418250:0}, iptr={10737418250:0}, one_modf=1, x=10737418254] [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 [\old(x)=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, one_modf=1, x=10737418254] [L29] COND TRUE j0 < 20 VAL [\old(x)=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, j0=-1, one_modf=1, x=10737418254] [L30] COND TRUE j0 < 0 VAL [\old(x)=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, j0=-1, one_modf=1, x=10737418254] [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 [\old(x)=10737418254, \result=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, j0=-1, one_modf=1, x=10737418254] [L118] RET, EXPR modf_double(x, &iptr) VAL [iptr={10737418250:0}, modf_double(x, &iptr)=10737418254, one_modf=1, x=10737418254] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, one_modf=1, res=10737418254, x=10737418254] [L121] CALL, EXPR isnan_double(iptr) VAL [\old(x)=10737418242, one_modf=1] [L15] return x != x; VAL [\old(x)=10737418242, \result=1, one_modf=1, x=10737418242] [L121] RET, EXPR isnan_double(iptr) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, one_modf=1, res=10737418254, x=10737418254] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1, res=10737418254, x=10737418254] [L121] CALL, EXPR isnan_double(res) VAL [\old(x)=10737418254, one_modf=1] [L15] return x != x; VAL [\old(x)=10737418254, \result=0, one_modf=1, x=10737418254] [L121] RET, EXPR isnan_double(res) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=10737418254, x=10737418254] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=10737418254, x=10737418254] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [iptr={10737418250:0}, one_modf=1, res=10737418254, x=10737418254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 124 SDtfs, 0 SDslu, 55 SDs, 0 SdLazy, 4 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=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-08 15:51:09,054 INFO L170 SettingsManager]: Resetting all preferences to default values... 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[2018-12-08 15:51:09,072 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 15:51:09,072 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 15:51:09,072 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 15:51:09,073 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 15:51:09,073 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 15:51:09,074 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 15:51:09,074 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 15:51:09,074 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 15:51:09,075 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 15:51:09,075 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 15:51:09,075 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 15:51:09,075 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 15:51:09,076 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 15:51:09,076 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 15:51:09,083 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 15:51:09,083 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 15:51:09,083 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 15:51:09,084 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 15:51:09,084 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 15:51:09,084 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 15:51:09,084 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 15:51:09,084 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 15:51:09,084 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 15:51:09,084 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 15:51:09,084 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 15:51:09,085 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 15:51:09,085 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 15:51:09,085 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 15:51:09,085 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 15:51:09,085 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 15:51:09,085 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 15:51:09,085 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 15:51:09,085 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 15:51:09,085 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 15:51:09,085 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 15:51:09,085 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 15:51:09,086 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 15:51:09,086 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 15:51:09,086 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:51:09,086 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 15:51:09,086 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 15:51:09,086 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 15:51:09,086 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 15:51:09,086 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 15:51:09,086 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 15:51:09,086 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 15:51:09,086 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/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 [2018-12-08 15:51:09,104 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 15:51:09,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 15:51:09,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 15:51:09,114 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 15:51:09,114 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 15:51:09,115 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-12-08 15:51:09,150 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/data/0b3b192f5/b061903b4aec472e8e8f75f6328aedb0/FLAG2c07261c5 [2018-12-08 15:51:09,537 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 15:51:09,537 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-12-08 15:51:09,542 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/data/0b3b192f5/b061903b4aec472e8e8f75f6328aedb0/FLAG2c07261c5 [2018-12-08 15:51:09,551 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/data/0b3b192f5/b061903b4aec472e8e8f75f6328aedb0 [2018-12-08 15:51:09,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 15:51:09,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 15:51:09,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 15:51:09,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 15:51:09,557 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 15:51:09,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:51:09" (1/1) ... [2018-12-08 15:51:09,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3832628d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09, skipping insertion in model container [2018-12-08 15:51:09,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:51:09" (1/1) ... [2018-12-08 15:51:09,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 15:51:09,577 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 15:51:09,695 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:51:09,708 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 15:51:09,738 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:51:09,750 INFO L195 MainTranslator]: Completed translation [2018-12-08 15:51:09,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09 WrapperNode [2018-12-08 15:51:09,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 15:51:09,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 15:51:09,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 15:51:09,751 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 15:51:09,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09" (1/1) ... [2018-12-08 15:51:09,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09" (1/1) ... [2018-12-08 15:51:09,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 15:51:09,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 15:51:09,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 15:51:09,767 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 15:51:09,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09" (1/1) ... [2018-12-08 15:51:09,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09" (1/1) ... [2018-12-08 15:51:09,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09" (1/1) ... [2018-12-08 15:51:09,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09" (1/1) ... [2018-12-08 15:51:09,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09" (1/1) ... [2018-12-08 15:51:09,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09" (1/1) ... [2018-12-08 15:51:09,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09" (1/1) ... [2018-12-08 15:51:09,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 15:51:09,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 15:51:09,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 15:51:09,821 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 15:51:09,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/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 [2018-12-08 15:51:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-08 15:51:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-08 15:51:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-08 15:51:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 15:51:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 15:51:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 15:51:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 15:51:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-08 15:51:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 15:51:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 15:51:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 15:51:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 15:51:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2018-12-08 15:51:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2018-12-08 15:51:09,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 15:51:09,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 15:51:09,985 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:51:10,006 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:51:10,039 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:51:10,050 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:51:10,116 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:51:10,126 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:51:10,142 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:51:10,164 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:51:10,469 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:51:10,486 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:51:10,499 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 15:51:10,499 INFO L280 CfgBuilder]: Removed 20 assue(true) statements. [2018-12-08 15:51:10,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:51:10 BoogieIcfgContainer [2018-12-08 15:51:10,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 15:51:10,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 15:51:10,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 15:51:10,503 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 15:51:10,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:51:09" (1/3) ... [2018-12-08 15:51:10,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef1e6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:51:10, skipping insertion in model container [2018-12-08 15:51:10,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:51:09" (2/3) ... [2018-12-08 15:51:10,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef1e6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:51:10, skipping insertion in model container [2018-12-08 15:51:10,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:51:10" (3/3) ... [2018-12-08 15:51:10,506 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210_false-unreach-call.c [2018-12-08 15:51:10,511 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 15:51:10,516 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 15:51:10,525 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 15:51:10,544 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 15:51:10,544 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 15:51:10,544 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 15:51:10,544 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 15:51:10,544 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 15:51:10,544 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 15:51:10,545 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 15:51:10,545 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 15:51:10,545 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 15:51:10,555 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-12-08 15:51:10,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 15:51:10,559 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:10,559 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:51:10,561 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:10,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:10,564 INFO L82 PathProgramCache]: Analyzing trace with hash 204549601, now seen corresponding path program 1 times [2018-12-08 15:51:10,566 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 15:51:10,566 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/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 [2018-12-08 15:51:10,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:10,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:51:10,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:51:10,623 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 15:51:10,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:51:10,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 15:51:10,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 15:51:10,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 15:51:10,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 15:51:10,643 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-12-08 15:51:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:51:10,658 INFO L93 Difference]: Finished difference Result 108 states and 162 transitions. [2018-12-08 15:51:10,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 15:51:10,659 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-12-08 15:51:10,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:51:10,664 INFO L225 Difference]: With dead ends: 108 [2018-12-08 15:51:10,665 INFO L226 Difference]: Without dead ends: 54 [2018-12-08 15:51:10,666 INFO L631 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 [2018-12-08 15:51:10,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-08 15:51:10,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-12-08 15:51:10,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-08 15:51:10,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-12-08 15:51:10,692 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 25 [2018-12-08 15:51:10,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:51:10,692 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-12-08 15:51:10,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 15:51:10,692 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-12-08 15:51:10,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 15:51:10,693 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:10,693 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:51:10,694 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:10,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:10,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1987482264, now seen corresponding path program 1 times [2018-12-08 15:51:10,694 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 15:51:10,694 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/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 [2018-12-08 15:51:10,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:10,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:51:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:51:10,897 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 15:51:10,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:51:10,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 15:51:10,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 15:51:10,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 15:51:10,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 15:51:10,906 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 7 states. [2018-12-08 15:51:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:51:14,083 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2018-12-08 15:51:14,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 15:51:14,084 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-12-08 15:51:14,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:51:14,086 INFO L225 Difference]: With dead ends: 72 [2018-12-08 15:51:14,086 INFO L226 Difference]: Without dead ends: 43 [2018-12-08 15:51:14,087 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-08 15:51:14,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-08 15:51:14,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-12-08 15:51:14,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-08 15:51:14,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-12-08 15:51:14,092 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 27 [2018-12-08 15:51:14,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:51:14,092 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-12-08 15:51:14,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 15:51:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-12-08 15:51:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-08 15:51:14,093 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:14,093 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:51:14,094 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:14,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:14,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1705207589, now seen corresponding path program 1 times [2018-12-08 15:51:14,094 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 15:51:14,094 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/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 [2018-12-08 15:51:14,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:14,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:51:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:51:14,209 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 15:51:14,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:51:14,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 15:51:14,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:51:14,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:51:14,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:51:14,218 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 3 states. [2018-12-08 15:51:14,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:51:14,224 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-12-08 15:51:14,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:51:14,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-12-08 15:51:14,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:51:14,225 INFO L225 Difference]: With dead ends: 44 [2018-12-08 15:51:14,225 INFO L226 Difference]: Without dead ends: 41 [2018-12-08 15:51:14,225 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:51:14,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-08 15:51:14,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-08 15:51:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-08 15:51:14,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-12-08 15:51:14,229 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 28 [2018-12-08 15:51:14,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:51:14,231 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-12-08 15:51:14,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:51:14,231 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-12-08 15:51:14,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-08 15:51:14,231 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:14,231 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:51:14,232 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:14,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:14,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1088160399, now seen corresponding path program 1 times [2018-12-08 15:51:14,232 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 15:51:14,232 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/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 [2018-12-08 15:51:14,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:51:14,363 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:51:14,458 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2018-12-08 15:51:14,588 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 15:51:14,626 INFO L303 Elim1Store]: Index analysis took 167 ms [2018-12-08 15:51:14,627 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 25 [2018-12-08 15:51:14,628 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 15:51:14,895 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 15:51:14,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 15:51:14,976 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:48, output treesize:18 [2018-12-08 15:51:17,040 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_2 (_ BitVec 32)) (v_arrayElimCell_3 (_ BitVec 32))) (= (fp.sub roundNearestTiesToEven |c_modf_double_#in~x| (let ((.cse0 (concat v_arrayElimCell_3 v_arrayElimCell_2))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))) |c_modf_double_#res|)) is different from true [2018-12-08 15:51:17,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 15:51:17,186 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 15:51:17,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:51:17,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-08 15:51:17,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 15:51:17,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 15:51:17,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=58, Unknown=1, NotChecked=14, Total=90 [2018-12-08 15:51:17,196 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 10 states. [2018-12-08 15:51:21,219 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-08 15:51:21,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:51:21,727 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-12-08 15:51:21,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 15:51:21,727 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-12-08 15:51:21,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:51:21,728 INFO L225 Difference]: With dead ends: 52 [2018-12-08 15:51:21,728 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 15:51:21,728 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=42, Invalid=142, Unknown=2, NotChecked=24, Total=210 [2018-12-08 15:51:21,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 15:51:21,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-08 15:51:21,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-08 15:51:21,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2018-12-08 15:51:21,732 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 33 [2018-12-08 15:51:21,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:51:21,732 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2018-12-08 15:51:21,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 15:51:21,732 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2018-12-08 15:51:21,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-08 15:51:21,732 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:51:21,733 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:51:21,733 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:51:21,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:51:21,733 INFO L82 PathProgramCache]: Analyzing trace with hash 2004349664, now seen corresponding path program 1 times [2018-12-08 15:51:21,733 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 15:51:21,733 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-08 15:51:21,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:51:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:51:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:51:22,423 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 15:51:22,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:51:22 BoogieIcfgContainer [2018-12-08 15:51:22,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 15:51:22,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 15:51:22,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 15:51:22,457 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 15:51:22,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:51:10" (3/4) ... [2018-12-08 15:51:22,458 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 15:51:22,496 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_12bf32cc-1148-4207-8fea-7aff30c9205f/bin-2019/uautomizer/witness.graphml [2018-12-08 15:51:22,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 15:51:22,496 INFO L168 Benchmark]: Toolchain (without parser) took 12943.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 944.7 MB in the beginning and 922.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 165.6 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:22,497 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:51:22,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.71 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:22,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.12 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:51:22,498 INFO L168 Benchmark]: Boogie Preprocessor took 53.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -203.5 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:22,498 INFO L168 Benchmark]: RCFGBuilder took 679.21 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:22,498 INFO L168 Benchmark]: TraceAbstraction took 11955.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.4 MB in the end (delta: 163.3 MB). Peak memory consumption was 163.3 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:22,499 INFO L168 Benchmark]: Witness Printer took 39.56 ms. Allocated memory is still 1.2 GB. Free memory was 929.4 MB in the beginning and 922.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:51:22,500 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 195.71 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.12 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -203.5 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 679.21 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11955.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.4 MB in the end (delta: 163.3 MB). Peak memory consumption was 163.3 MB. Max. memory is 11.5 GB. * Witness Printer took 39.56 ms. Allocated memory is still 1.2 GB. Free memory was 929.4 MB in the beginning and 922.8 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.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 [\old(one_modf)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000025, one_modf=1.0] [L116] double x = 0.0 / 0.0; [L117] double iptr; VAL [iptr={2:0}, one_modf=1.0, x=NaN] [L118] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=NaN, iptr={2:0}, one_modf=1.0] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [\old(x)=NaN, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [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 [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L29] COND FALSE !(j0 < 20) VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L65] COND TRUE j0 > 51 [L66] __uint32_t high; [L67] *iptr = x * one_modf VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [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 [\old(x)=NaN, \result=0.0, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=0.0] [L118] RET, EXPR modf_double(x, &iptr) VAL [iptr={2:0}, modf_double(x, &iptr)=0.0, one_modf=1.0, x=NaN] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] [L121] CALL, EXPR isnan_double(iptr) VAL [\old(x)=NaN, one_modf=1.0] [L15] return x != x; VAL [\old(x)=NaN, \result=1, one_modf=1.0, x=NaN] [L121] RET, EXPR isnan_double(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, one_modf=1.0, res=0.0, x=NaN] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1.0, res=0.0, x=NaN] [L121] CALL, EXPR isnan_double(res) VAL [\old(x)=0.0, one_modf=1.0] [L15] return x != x; VAL [\old(x)=0.0, \result=0, one_modf=1.0, x=0.0] [L121] RET, EXPR isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. UNSAFE Result, 11.9s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 7.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 179 SDtfs, 142 SDslu, 360 SDs, 0 SdLazy, 170 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 109 ConstructedInterpolants, 16 QuantifiedInterpolants, 14078 SizeOfPredicates, 12 NumberOfNonLiveVariables, 330 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...