./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14218179970cdda4c2f749c75b7f78aa74dcc86b ......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14218179970cdda4c2f749c75b7f78aa74dcc86b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:18:39,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:18:39,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:18:39,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:18:39,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:18:39,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:18:39,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:18:39,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:18:39,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:18:39,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:18:39,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:18:39,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:18:39,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:18:39,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:18:39,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:18:39,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:18:39,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:18:39,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:18:39,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:18:39,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:18:39,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:18:39,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:18:39,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:18:39,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:18:39,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:18:39,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:18:39,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:18:39,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:18:39,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:18:39,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:18:39,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:18:39,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:18:39,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:18:39,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:18:39,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:18:39,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:18:39,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:18:39,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:18:39,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:18:39,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:18:39,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:18:39,953 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 15:18:39,965 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:18:39,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:18:39,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:18:39,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:18:39,967 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:18:39,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:18:39,967 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:18:39,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:18:39,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:18:39,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:18:39,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:18:39,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:18:39,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:18:39,969 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:18:39,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:18:39,969 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:18:39,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:18:39,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:18:39,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:18:39,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:18:39,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:18:39,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:18:39,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:18:39,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:18:39,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:18:39,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:18:39,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:18:39,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:18:39,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:18:39,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2019-12-07 15:18:40,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:18:40,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:18:40,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:18:40,094 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:18:40,094 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:18:40,095 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-12-07 15:18:40,136 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/data/ff2b50883/42e8d940423b42b2a866a1c9edd8a571/FLAG0da34ac79 [2019-12-07 15:18:40,550 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:18:40,550 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-12-07 15:18:40,555 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/data/ff2b50883/42e8d940423b42b2a866a1c9edd8a571/FLAG0da34ac79 [2019-12-07 15:18:40,563 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/data/ff2b50883/42e8d940423b42b2a866a1c9edd8a571 [2019-12-07 15:18:40,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:18:40,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:18:40,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:18:40,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:18:40,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:18:40,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:18:40" (1/1) ... [2019-12-07 15:18:40,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1e11ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40, skipping insertion in model container [2019-12-07 15:18:40,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:18:40" (1/1) ... [2019-12-07 15:18:40,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:18:40,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:18:40,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:18:40,780 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:18:40,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:18:40,817 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:18:40,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40 WrapperNode [2019-12-07 15:18:40,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:18:40,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:18:40,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:18:40,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:18:40,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40" (1/1) ... [2019-12-07 15:18:40,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40" (1/1) ... [2019-12-07 15:18:40,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:18:40,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:18:40,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:18:40,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:18:40,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40" (1/1) ... [2019-12-07 15:18:40,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40" (1/1) ... [2019-12-07 15:18:40,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40" (1/1) ... [2019-12-07 15:18:40,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40" (1/1) ... [2019-12-07 15:18:40,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40" (1/1) ... [2019-12-07 15:18:40,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40" (1/1) ... [2019-12-07 15:18:40,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40" (1/1) ... [2019-12-07 15:18:40,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:18:40,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:18:40,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:18:40,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:18:40,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:18:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:18:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:18:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 15:18:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 15:18:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:18:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:18:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:18:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 15:18:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:18:41,123 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:18:41,123 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 15:18:41,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:18:41 BoogieIcfgContainer [2019-12-07 15:18:41,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:18:41,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:18:41,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:18:41,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:18:41,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:18:40" (1/3) ... [2019-12-07 15:18:41,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fb1a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:18:41, skipping insertion in model container [2019-12-07 15:18:41,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:40" (2/3) ... [2019-12-07 15:18:41,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fb1a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:18:41, skipping insertion in model container [2019-12-07 15:18:41,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:18:41" (3/3) ... [2019-12-07 15:18:41,129 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2019-12-07 15:18:41,135 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:18:41,139 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:18:41,146 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:18:41,161 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:18:41,161 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:18:41,161 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:18:41,161 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:18:41,161 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:18:41,161 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:18:41,161 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:18:41,162 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:18:41,171 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-12-07 15:18:41,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:18:41,175 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:18:41,175 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:18:41,176 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:18:41,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:18:41,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2019-12-07 15:18:41,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:18:41,185 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570770892] [2019-12-07 15:18:41,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:18:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:18:41,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:18:41,274 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570770892] [2019-12-07 15:18:41,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:18:41,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:18:41,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531473553] [2019-12-07 15:18:41,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:18:41,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:18:41,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:18:41,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:18:41,288 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-12-07 15:18:41,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:18:41,300 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2019-12-07 15:18:41,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:18:41,301 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 15:18:41,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:18:41,308 INFO L225 Difference]: With dead ends: 72 [2019-12-07 15:18:41,308 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 15:18:41,310 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:18:41,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 15:18:41,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 15:18:41,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 15:18:41,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2019-12-07 15:18:41,333 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2019-12-07 15:18:41,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:18:41,334 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-12-07 15:18:41,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:18:41,334 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2019-12-07 15:18:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:18:41,334 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:18:41,334 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:18:41,335 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:18:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:18:41,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2019-12-07 15:18:41,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:18:41,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932588942] [2019-12-07 15:18:41,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:18:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:18:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:18:41,406 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:18:41,407 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:18:41,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:18:41 BoogieIcfgContainer [2019-12-07 15:18:41,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:18:41,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:18:41,431 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:18:41,431 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:18:41,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:18:41" (3/4) ... [2019-12-07 15:18:41,434 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:18:41,434 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:18:41,435 INFO L168 Benchmark]: Toolchain (without parser) took 868.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -106.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:18:41,436 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:18:41,436 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:18:41,437 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:18:41,437 INFO L168 Benchmark]: Boogie Preprocessor took 22.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:18:41,437 INFO L168 Benchmark]: RCFGBuilder took 252.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:18:41,438 INFO L168 Benchmark]: TraceAbstraction took 306.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:18:41,438 INFO L168 Benchmark]: Witness Printer took 2.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:18:41,440 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 252.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 306.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L116] float x = 0.0f / 0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float res = __ieee754_expf(x); [L13] return x != x; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] COND TRUE !isnan_float(res) [L121] __VERIFIER_error() VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 15:18:42,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:18:42,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:18:42,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-12-07 15:18:42,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:18:42,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:18:42,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:18:42,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:18:42,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:18:42,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:18:42,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:18:42,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:18:42,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:18:42,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:18:42,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:18:42,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:18:42,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-07 15:18:42,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:18:42,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:18:42,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:18:42,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:18:42,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:18:42,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:18:42,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:18:42,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:18:42,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:18:42,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:18:42,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:18:42,835 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 15:18:42,845 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:18:42,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:18:42,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:18:42,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:18:42,846 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:18:42,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:18:42,847 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:18:42,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:18:42,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:18:42,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:18:42,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:18:42,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:18:42,847 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:18:42,848 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:18:42,848 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:18:42,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:18:42,848 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:18:42,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:18:42,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:18:42,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:18:42,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:18:42,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:18:42,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:18:42,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:18:42,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:18:42,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:18:42,849 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 15:18:42,849 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:18:42,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:18:42,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:18:42,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:18:42,850 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2019-12-07 15:18:43,022 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:18:43,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:18:43,035 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:18:43,036 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:18:43,037 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:18:43,037 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-12-07 15:18:43,085 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/data/972bb1bf1/6635d857a16e4ab8b721786306f8f3c0/FLAG26cbf9e0a [2019-12-07 15:18:43,418 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:18:43,419 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-12-07 15:18:43,424 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/data/972bb1bf1/6635d857a16e4ab8b721786306f8f3c0/FLAG26cbf9e0a [2019-12-07 15:18:43,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/data/972bb1bf1/6635d857a16e4ab8b721786306f8f3c0 [2019-12-07 15:18:43,438 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:18:43,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:18:43,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:18:43,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:18:43,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:18:43,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:18:43" (1/1) ... [2019-12-07 15:18:43,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76eb2b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43, skipping insertion in model container [2019-12-07 15:18:43,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:18:43" (1/1) ... [2019-12-07 15:18:43,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:18:43,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:18:43,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:18:43,599 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:18:43,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:18:43,671 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:18:43,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43 WrapperNode [2019-12-07 15:18:43,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:18:43,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:18:43,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:18:43,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:18:43,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43" (1/1) ... [2019-12-07 15:18:43,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43" (1/1) ... [2019-12-07 15:18:43,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:18:43,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:18:43,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:18:43,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:18:43,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43" (1/1) ... [2019-12-07 15:18:43,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43" (1/1) ... [2019-12-07 15:18:43,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43" (1/1) ... [2019-12-07 15:18:43,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43" (1/1) ... [2019-12-07 15:18:43,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43" (1/1) ... [2019-12-07 15:18:43,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43" (1/1) ... [2019-12-07 15:18:43,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43" (1/1) ... [2019-12-07 15:18:43,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:18:43,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:18:43,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:18:43,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:18:43,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:18:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-12-07 15:18:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:18:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 15:18:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:18:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:18:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:18:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 15:18:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:18:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:18:51,505 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:18:51,506 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 15:18:51,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:18:51 BoogieIcfgContainer [2019-12-07 15:18:51,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:18:51,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:18:51,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:18:51,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:18:51,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:18:43" (1/3) ... [2019-12-07 15:18:51,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5116fbfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:18:51, skipping insertion in model container [2019-12-07 15:18:51,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:18:43" (2/3) ... [2019-12-07 15:18:51,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5116fbfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:18:51, skipping insertion in model container [2019-12-07 15:18:51,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:18:51" (3/3) ... [2019-12-07 15:18:51,511 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2019-12-07 15:18:51,517 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:18:51,521 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:18:51,528 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:18:51,542 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:18:51,543 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:18:51,543 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:18:51,543 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:18:51,543 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:18:51,543 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:18:51,543 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:18:51,543 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:18:51,552 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-12-07 15:18:51,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:18:51,556 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:18:51,557 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:18:51,557 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:18:51,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:18:51,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2019-12-07 15:18:51,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:18:51,568 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451756410] [2019-12-07 15:18:51,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 15:18:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:18:52,003 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:18:52,007 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:18:52,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:18:52,016 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:18:52,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:18:52,020 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451756410] [2019-12-07 15:18:52,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:18:52,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:18:52,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709256242] [2019-12-07 15:18:52,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:18:52,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:18:52,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:18:52,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:18:52,036 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-12-07 15:18:52,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:18:52,050 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2019-12-07 15:18:52,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:18:52,051 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 15:18:52,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:18:52,061 INFO L225 Difference]: With dead ends: 72 [2019-12-07 15:18:52,061 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 15:18:52,064 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:18:52,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 15:18:52,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 15:18:52,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 15:18:52,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2019-12-07 15:18:52,093 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2019-12-07 15:18:52,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:18:52,093 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-12-07 15:18:52,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:18:52,094 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2019-12-07 15:18:52,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:18:52,094 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:18:52,094 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:18:52,295 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:18:52,295 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:18:52,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:18:52,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2019-12-07 15:18:52,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:18:52,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262389254] [2019-12-07 15:18:52,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 15:18:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:18:52,723 INFO L264 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:18:52,724 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:18:52,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:18:52,787 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:18:53,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:18:53,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262389254] [2019-12-07 15:18:53,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:18:53,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 15:18:53,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652296248] [2019-12-07 15:18:53,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 15:18:53,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:18:53,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 15:18:53,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:18:53,035 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 10 states. [2019-12-07 15:19:06,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:19:06,445 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2019-12-07 15:19:06,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 15:19:06,445 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2019-12-07 15:19:06,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:19:06,446 INFO L225 Difference]: With dead ends: 50 [2019-12-07 15:19:06,446 INFO L226 Difference]: Without dead ends: 42 [2019-12-07 15:19:06,447 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-12-07 15:19:06,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-12-07 15:19:06,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2019-12-07 15:19:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 15:19:06,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2019-12-07 15:19:06,451 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 10 [2019-12-07 15:19:06,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:19:06,451 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2019-12-07 15:19:06,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 15:19:06,451 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2019-12-07 15:19:06,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 15:19:06,451 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:19:06,452 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:19:06,652 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:19:06,653 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:19:06,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:19:06,654 INFO L82 PathProgramCache]: Analyzing trace with hash 228797714, now seen corresponding path program 1 times [2019-12-07 15:19:06,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:19:06,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944754689] [2019-12-07 15:19:06,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 15:19:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:19:07,150 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 15:19:07,151 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:19:07,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:19:07,217 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:19:07,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:19:07,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944754689] [2019-12-07 15:19:07,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:19:07,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 10 [2019-12-07 15:19:07,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050470690] [2019-12-07 15:19:07,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 15:19:07,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:19:07,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 15:19:07,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:19:07,337 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 10 states. [2019-12-07 15:19:07,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:19:07,448 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2019-12-07 15:19:07,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:19:07,449 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-12-07 15:19:07,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:19:07,449 INFO L225 Difference]: With dead ends: 34 [2019-12-07 15:19:07,449 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:19:07,450 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-07 15:19:07,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:19:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:19:07,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:19:07,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:19:07,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-12-07 15:19:07,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:19:07,450 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:19:07,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 15:19:07,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:19:07,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:19:07,651 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:19:07,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 15:19:07,757 INFO L246 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2019-12-07 15:19:07,757 INFO L246 CegarLoopResult]: For program point L52-2(line 52) no Hoare annotation was computed. [2019-12-07 15:19:07,757 INFO L246 CegarLoopResult]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-12-07 15:19:07,757 INFO L246 CegarLoopResult]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2019-12-07 15:19:07,758 INFO L246 CegarLoopResult]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2019-12-07 15:19:07,758 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 15:19:07,758 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 15:19:07,758 INFO L246 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2019-12-07 15:19:07,758 INFO L246 CegarLoopResult]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-12-07 15:19:07,758 INFO L246 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-12-07 15:19:07,758 INFO L246 CegarLoopResult]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2019-12-07 15:19:07,758 INFO L246 CegarLoopResult]: For program point L120(lines 120 123) no Hoare annotation was computed. [2019-12-07 15:19:07,758 INFO L242 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_expf_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= |ULTIMATE.start___ieee754_expf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2019-12-07 15:19:07,758 INFO L246 CegarLoopResult]: For program point L71(lines 71 72) no Hoare annotation was computed. [2019-12-07 15:19:07,759 INFO L246 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2019-12-07 15:19:07,759 INFO L246 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-12-07 15:19:07,759 INFO L246 CegarLoopResult]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-12-07 15:19:07,759 INFO L242 CegarLoopResult]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-12-07 15:19:07,759 INFO L246 CegarLoopResult]: For program point L89(lines 89 93) no Hoare annotation was computed. [2019-12-07 15:19:07,759 INFO L246 CegarLoopResult]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2019-12-07 15:19:07,759 INFO L246 CegarLoopResult]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2019-12-07 15:19:07,759 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 15:19:07,759 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2019-12-07 15:19:07,759 INFO L246 CegarLoopResult]: For program point L82(lines 82 108) no Hoare annotation was computed. [2019-12-07 15:19:07,759 INFO L246 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-12-07 15:19:07,760 INFO L242 CegarLoopResult]: At program point L107(lines 36 109) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_expf_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= |ULTIMATE.start___ieee754_expf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2019-12-07 15:19:07,760 INFO L246 CegarLoopResult]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2019-12-07 15:19:07,760 INFO L242 CegarLoopResult]: At program point L41-2(lines 41 45) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_expf_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) [2019-12-07 15:19:07,760 INFO L246 CegarLoopResult]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2019-12-07 15:19:07,760 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 15:19:07,760 INFO L246 CegarLoopResult]: For program point L58(lines 58 73) no Hoare annotation was computed. [2019-12-07 15:19:07,760 INFO L249 CegarLoopResult]: At program point L125(lines 111 126) the Hoare annotation is: true [2019-12-07 15:19:07,760 INFO L246 CegarLoopResult]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-12-07 15:19:07,760 INFO L246 CegarLoopResult]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2019-12-07 15:19:07,760 INFO L246 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2019-12-07 15:19:07,761 INFO L246 CegarLoopResult]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-12-07 15:19:07,761 INFO L242 CegarLoopResult]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2019-12-07 15:19:07,768 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,769 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,769 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,769 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,771 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,772 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,772 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,772 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,772 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,773 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,773 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,774 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,774 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,774 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,774 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,774 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,775 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,775 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,775 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,775 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,775 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,775 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,776 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:19:07 BoogieIcfgContainer [2019-12-07 15:19:07,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:19:07,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:19:07,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:19:07,778 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:19:07,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:18:51" (3/4) ... [2019-12-07 15:19:07,782 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:19:07,791 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 15:19:07,791 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 15:19:07,791 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 15:19:07,810 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-12-07 15:19:07,810 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-12-07 15:19:07,847 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d8829fac-0ce4-4478-a7ba-329501c9c661/bin/uautomizer/witness.graphml [2019-12-07 15:19:07,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:19:07,849 INFO L168 Benchmark]: Toolchain (without parser) took 24409.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 953.7 MB in the beginning and 941.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 149.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:19:07,849 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:19:07,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:19:07,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:19:07,850 INFO L168 Benchmark]: Boogie Preprocessor took 27.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:19:07,850 INFO L168 Benchmark]: RCFGBuilder took 7773.74 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:19:07,850 INFO L168 Benchmark]: TraceAbstraction took 16270.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.1 MB in the end (delta: 131.2 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:19:07,850 INFO L168 Benchmark]: Witness Printer took 69.73 ms. Allocated memory is still 1.2 GB. Free memory was 948.1 MB in the beginning and 941.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:19:07,852 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 231.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 7773.74 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16270.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.1 MB in the end (delta: 131.2 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. * Witness Printer took 69.73 ms. Allocated memory is still 1.2 GB. Free memory was 948.1 MB in the beginning and 941.2 MB 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-12-07 15:19:07,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 41]: Loop Invariant [2019-12-07 15:19:07,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 13]: Loop Invariant [2019-12-07 15:19:07,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:19:07,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:19:07,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((1bv32 == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 16.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 79 SDtfs, 82 SDslu, 151 SDs, 0 SdLazy, 80 SolverSat, 2 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 12.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 60 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 5 QuantifiedInterpolants, 3107 SizeOfPredicates, 15 NumberOfNonLiveVariables, 193 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...