./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/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 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb ............................................................................................................................................................................................................................................................................................ 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_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/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 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:51:42,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:51:42,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:51:42,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:51:42,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:51:42,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:51:42,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:51:42,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:51:42,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:51:42,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:51:42,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:51:42,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:51:42,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:51:42,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:51:42,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:51:42,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:51:42,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:51:42,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:51:42,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:51:42,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:51:42,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:51:42,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:51:42,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:51:42,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:51:42,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:51:42,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:51:42,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:51:42,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:51:42,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:51:42,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:51:42,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:51:42,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:51:42,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:51:42,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:51:42,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:51:42,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:51:42,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:51:42,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:51:42,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:51:42,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:51:42,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:51:42,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 22:51:42,871 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:51:42,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:51:42,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:51:42,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:51:42,883 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:51:42,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:51:42,884 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:51:42,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:51:42,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:51:42,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:51:42,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:51:42,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:51:42,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:51:42,886 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:51:42,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:51:42,886 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:51:42,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:51:42,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:51:42,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:51:42,887 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:51:42,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:51:42,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:51:42,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:51:42,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:51:42,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:51:42,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:51:42,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:51:42,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:51:42,890 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_ef1f824c-743b-4352-ad16-ad329063cffa/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 -> 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb [2019-11-19 22:51:43,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:51:43,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:51:43,094 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:51:43,095 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:51:43,096 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:51:43,097 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-19 22:51:43,168 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/data/88a540d14/98f373abfef2436ab3ca980fe0dff92c/FLAG391193004 [2019-11-19 22:51:43,532 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:51:43,532 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-19 22:51:43,539 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/data/88a540d14/98f373abfef2436ab3ca980fe0dff92c/FLAG391193004 [2019-11-19 22:51:43,966 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/data/88a540d14/98f373abfef2436ab3ca980fe0dff92c [2019-11-19 22:51:43,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:51:43,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:51:43,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:51:43,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:51:43,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:51:43,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:51:43" (1/1) ... [2019-11-19 22:51:43,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322fff31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:43, skipping insertion in model container [2019-11-19 22:51:43,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:51:43" (1/1) ... [2019-11-19 22:51:43,984 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:51:44,015 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:51:44,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:51:44,355 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:51:44,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:51:44,410 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:51:44,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44 WrapperNode [2019-11-19 22:51:44,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:51:44,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:51:44,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:51:44,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:51:44,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44" (1/1) ... [2019-11-19 22:51:44,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44" (1/1) ... [2019-11-19 22:51:44,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:51:44,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:51:44,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:51:44,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:51:44,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44" (1/1) ... [2019-11-19 22:51:44,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44" (1/1) ... [2019-11-19 22:51:44,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44" (1/1) ... [2019-11-19 22:51:44,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44" (1/1) ... [2019-11-19 22:51:44,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44" (1/1) ... [2019-11-19 22:51:44,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44" (1/1) ... [2019-11-19 22:51:44,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44" (1/1) ... [2019-11-19 22:51:44,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:51:44,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:51:44,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:51:44,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:51:44,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:51:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:51:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:51:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 22:51:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 22:51:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:51:44,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:51:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 22:51:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-19 22:51:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:51:44,976 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:51:44,977 INFO L285 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-19 22:51:44,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:51:44 BoogieIcfgContainer [2019-11-19 22:51:44,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:51:44,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:51:44,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:51:44,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:51:44,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:51:43" (1/3) ... [2019-11-19 22:51:44,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696e250c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:51:44, skipping insertion in model container [2019-11-19 22:51:44,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:44" (2/3) ... [2019-11-19 22:51:44,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696e250c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:51:44, skipping insertion in model container [2019-11-19 22:51:44,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:51:44" (3/3) ... [2019-11-19 22:51:44,985 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2019-11-19 22:51:44,995 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:51:45,002 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:51:45,013 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:51:45,035 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:51:45,035 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:51:45,035 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:51:45,036 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:51:45,036 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:51:45,036 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:51:45,036 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:51:45,036 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:51:45,049 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-19 22:51:45,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 22:51:45,055 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:51:45,056 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:51:45,056 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:51:45,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:51:45,061 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-19 22:51:45,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:51:45,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330167125] [2019-11-19 22:51:45,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:51:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:51:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:51:45,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330167125] [2019-11-19 22:51:45,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:51:45,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:51:45,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371268475] [2019-11-19 22:51:45,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 22:51:45,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:51:45,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 22:51:45,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:51:45,204 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-19 22:51:45,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:51:45,224 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-19 22:51:45,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 22:51:45,225 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 22:51:45,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:51:45,234 INFO L225 Difference]: With dead ends: 82 [2019-11-19 22:51:45,234 INFO L226 Difference]: Without dead ends: 39 [2019-11-19 22:51:45,237 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:51:45,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-19 22:51:45,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-19 22:51:45,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-19 22:51:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-19 22:51:45,271 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-19 22:51:45,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:51:45,272 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-19 22:51:45,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 22:51:45,272 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-19 22:51:45,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 22:51:45,273 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:51:45,273 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:51:45,273 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:51:45,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:51:45,274 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-19 22:51:45,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:51:45,274 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477124104] [2019-11-19 22:51:45,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:51:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:51:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:51:45,457 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:51:45,457 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 22:51:45,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:51:45 BoogieIcfgContainer [2019-11-19 22:51:45,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:51:45,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:51:45,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:51:45,501 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:51:45,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:51:44" (3/4) ... [2019-11-19 22:51:45,505 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:51:45,505 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:51:45,507 INFO L168 Benchmark]: Toolchain (without parser) took 1537.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -131.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:51:45,508 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:51:45,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -198.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:51:45,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.39 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:51:45,510 INFO L168 Benchmark]: Boogie Preprocessor took 33.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:51:45,511 INFO L168 Benchmark]: RCFGBuilder took 486.57 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:51:45,511 INFO L168 Benchmark]: TraceAbstraction took 521.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:51:45,512 INFO L168 Benchmark]: Witness Printer took 4.62 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:51:45,516 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 441.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -198.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.39 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 486.57 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 521.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.62 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 123]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = 0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={3:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L119] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L122] COND TRUE !isnan_float(res) [L123] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-19 22:51:47,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:51:47,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:51:47,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:51:47,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:51:47,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:51:47,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:51:47,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:51:47,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:51:47,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:51:47,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:51:47,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:51:47,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:51:47,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:51:47,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:51:47,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:51:47,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:51:47,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:51:47,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:51:47,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:51:47,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:51:47,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:51:47,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:51:47,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:51:47,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:51:47,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:51:47,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:51:47,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:51:47,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:51:47,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:51:47,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:51:47,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:51:47,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:51:47,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:51:47,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:51:47,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:51:47,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:51:47,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:51:47,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:51:47,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:51:47,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:51:47,643 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 22:51:47,671 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:51:47,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:51:47,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:51:47,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:51:47,675 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:51:47,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:51:47,675 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:51:47,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:51:47,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:51:47,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:51:47,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:51:47,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:51:47,678 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 22:51:47,678 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 22:51:47,678 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:51:47,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:51:47,679 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:51:47,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:51:47,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:51:47,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:51:47,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:51:47,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:51:47,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:51:47,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:51:47,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:51:47,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:51:47,682 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 22:51:47,682 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 22:51:47,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:51:47,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 22:51:47,683 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_ef1f824c-743b-4352-ad16-ad329063cffa/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 -> 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb [2019-11-19 22:51:47,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:51:48,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:51:48,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:51:48,017 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:51:48,018 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:51:48,019 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-19 22:51:48,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/data/b4d24abbd/e690d7af51fe4f3a8b38e513864b6624/FLAG0ea698cb2 [2019-11-19 22:51:48,498 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:51:48,499 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-19 22:51:48,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/data/b4d24abbd/e690d7af51fe4f3a8b38e513864b6624/FLAG0ea698cb2 [2019-11-19 22:51:48,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/data/b4d24abbd/e690d7af51fe4f3a8b38e513864b6624 [2019-11-19 22:51:48,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:51:48,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:51:48,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:51:48,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:51:48,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:51:48,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:51:48" (1/1) ... [2019-11-19 22:51:48,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb81d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:48, skipping insertion in model container [2019-11-19 22:51:48,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:51:48" (1/1) ... [2019-11-19 22:51:48,890 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:51:48,913 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:51:49,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:51:49,188 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:51:49,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:51:49,327 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:51:49,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49 WrapperNode [2019-11-19 22:51:49,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:51:49,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:51:49,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:51:49,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:51:49,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49" (1/1) ... [2019-11-19 22:51:49,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49" (1/1) ... [2019-11-19 22:51:49,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:51:49,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:51:49,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:51:49,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:51:49,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49" (1/1) ... [2019-11-19 22:51:49,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49" (1/1) ... [2019-11-19 22:51:49,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49" (1/1) ... [2019-11-19 22:51:49,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49" (1/1) ... [2019-11-19 22:51:49,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49" (1/1) ... [2019-11-19 22:51:49,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49" (1/1) ... [2019-11-19 22:51:49,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49" (1/1) ... [2019-11-19 22:51:49,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:51:49,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:51:49,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:51:49,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:51:49,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:51:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-19 22:51:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:51:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-19 22:51:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 22:51:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:51:49,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:51:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-19 22:51:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 22:51:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:51:50,696 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:51:50,696 INFO L285 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-19 22:51:50,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:51:50 BoogieIcfgContainer [2019-11-19 22:51:50,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:51:50,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:51:50,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:51:50,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:51:50,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:51:48" (1/3) ... [2019-11-19 22:51:50,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208ddeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:51:50, skipping insertion in model container [2019-11-19 22:51:50,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:49" (2/3) ... [2019-11-19 22:51:50,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208ddeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:51:50, skipping insertion in model container [2019-11-19 22:51:50,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:51:50" (3/3) ... [2019-11-19 22:51:50,705 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2019-11-19 22:51:50,714 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:51:50,721 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:51:50,731 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:51:50,752 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:51:50,752 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:51:50,752 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:51:50,752 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:51:50,753 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:51:50,753 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:51:50,753 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:51:50,753 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:51:50,765 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-19 22:51:50,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 22:51:50,771 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:51:50,772 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:51:50,772 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:51:50,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:51:50,777 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-19 22:51:50,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:51:50,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788757563] [2019-11-19 22:51:50,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-19 22:51:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:51:51,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 22:51:51,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:51:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:51:51,193 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:51:51,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:51:51,198 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788757563] [2019-11-19 22:51:51,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:51:51,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 22:51:51,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892280186] [2019-11-19 22:51:51,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 22:51:51,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:51:51,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 22:51:51,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:51:51,216 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-19 22:51:51,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:51:51,236 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-19 22:51:51,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 22:51:51,237 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 22:51:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:51:51,248 INFO L225 Difference]: With dead ends: 82 [2019-11-19 22:51:51,249 INFO L226 Difference]: Without dead ends: 39 [2019-11-19 22:51:51,252 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:51:51,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-19 22:51:51,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-19 22:51:51,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-19 22:51:51,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-19 22:51:51,283 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-19 22:51:51,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:51:51,284 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-19 22:51:51,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 22:51:51,284 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-19 22:51:51,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 22:51:51,285 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:51:51,285 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:51:51,486 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 22:51:51,486 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:51:51,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:51:51,487 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-19 22:51:51,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:51:51,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545398349] [2019-11-19 22:51:51,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-19 22:51:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:51:51,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 22:51:51,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:51:53,369 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-11-19 22:51:53,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:51:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:51:54,970 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:51:58,823 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-19 22:51:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:51:58,968 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545398349] [2019-11-19 22:51:58,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:51:58,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-19 22:51:58,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759913948] [2019-11-19 22:51:58,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-19 22:51:58,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:51:58,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-19 22:51:58,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=54, Unknown=1, NotChecked=14, Total=90 [2019-11-19 22:51:58,971 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 10 states. [2019-11-19 22:52:05,502 WARN L191 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2019-11-19 22:52:09,454 WARN L191 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2019-11-19 22:52:12,333 WARN L191 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2019-11-19 22:52:12,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:52:12,376 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2019-11-19 22:52:12,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 22:52:12,377 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-19 22:52:12,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:52:12,379 INFO L225 Difference]: With dead ends: 44 [2019-11-19 22:52:12,379 INFO L226 Difference]: Without dead ends: 39 [2019-11-19 22:52:12,380 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=45, Invalid=90, Unknown=1, NotChecked=20, Total=156 [2019-11-19 22:52:12,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-19 22:52:12,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-19 22:52:12,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-19 22:52:12,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-19 22:52:12,388 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-11-19 22:52:12,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:52:12,389 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-19 22:52:12,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-19 22:52:12,389 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-19 22:52:12,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-19 22:52:12,390 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:52:12,391 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:52:12,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 22:52:12,610 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:52:12,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:52:12,611 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-11-19 22:52:12,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:52:12,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259143220] [2019-11-19 22:52:12,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-19 22:52:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:52:12,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 22:52:12,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:52:12,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:52:12,759 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:52:12,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:52:12,818 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259143220] [2019-11-19 22:52:12,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:52:12,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 6 [2019-11-19 22:52:12,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777200331] [2019-11-19 22:52:12,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 22:52:12,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:52:12,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 22:52:12,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-19 22:52:12,820 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 6 states. [2019-11-19 22:52:12,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:52:12,867 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-11-19 22:52:12,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:52:12,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-11-19 22:52:12,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:52:12,870 INFO L225 Difference]: With dead ends: 39 [2019-11-19 22:52:12,870 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:52:12,871 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-19 22:52:12,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:52:12,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:52:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:52:12,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:52:12,872 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-19 22:52:12,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:52:12,873 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:52:12,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 22:52:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:52:12,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:52:13,083 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 22:52:13,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:52:14,177 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 14 [2019-11-19 22:52:16,114 WARN L191 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 11 [2019-11-19 22:52:16,117 INFO L444 ceAbstractionStarter]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-11-19 22:52:16,117 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-11-19 22:52:16,117 INFO L447 ceAbstractionStarter]: At program point L127(lines 110 128) the Hoare annotation is: true [2019-11-19 22:52:16,118 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:52:16,118 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:52:16,118 INFO L444 ceAbstractionStarter]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-11-19 22:52:16,118 INFO L444 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-11-19 22:52:16,118 INFO L440 ceAbstractionStarter]: At program point L20-2(lines 20 24) the Hoare annotation is: (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) [2019-11-19 22:52:16,118 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-11-19 22:52:16,119 INFO L444 ceAbstractionStarter]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-11-19 22:52:16,119 INFO L440 ceAbstractionStarter]: At program point L104(lines 17 105) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2019-11-19 22:52:16,119 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-19 22:52:16,119 INFO L444 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-11-19 22:52:16,119 INFO L440 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-11-19 22:52:16,120 INFO L444 ceAbstractionStarter]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-11-19 22:52:16,120 INFO L440 ceAbstractionStarter]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-11-19 22:52:16,122 INFO L444 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-19 22:52:16,123 INFO L440 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-19 22:52:16,123 INFO L444 ceAbstractionStarter]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-11-19 22:52:16,123 INFO L444 ceAbstractionStarter]: For program point L122(lines 122 125) no Hoare annotation was computed. [2019-11-19 22:52:16,123 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-19 22:52:16,123 INFO L444 ceAbstractionStarter]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-11-19 22:52:16,124 INFO L444 ceAbstractionStarter]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-11-19 22:52:16,124 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 22:52:16,124 INFO L444 ceAbstractionStarter]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-11-19 22:52:16,124 INFO L444 ceAbstractionStarter]: For program point L123(line 123) no Hoare annotation was computed. [2019-11-19 22:52:16,125 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2019-11-19 22:52:16,125 INFO L440 ceAbstractionStarter]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-11-19 22:52:16,125 INFO L444 ceAbstractionStarter]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-11-19 22:52:16,125 INFO L444 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-19 22:52:16,126 INFO L440 ceAbstractionStarter]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-11-19 22:52:16,126 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:52:16,126 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-11-19 22:52:16,126 INFO L444 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-11-19 22:52:16,127 INFO L444 ceAbstractionStarter]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-11-19 22:52:16,127 INFO L444 ceAbstractionStarter]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-11-19 22:52:16,127 INFO L440 ceAbstractionStarter]: At program point L108(line 108) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2019-11-19 22:52:16,128 INFO L444 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-19 22:52:16,128 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-19 22:52:16,128 INFO L440 ceAbstractionStarter]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-11-19 22:52:16,128 INFO L444 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-11-19 22:52:16,128 INFO L444 ceAbstractionStarter]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-11-19 22:52:16,150 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,152 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,152 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,152 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,162 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,162 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,163 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,163 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,164 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,164 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:52:16 BoogieIcfgContainer [2019-11-19 22:52:16,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:52:16,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:52:16,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:52:16,174 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:52:16,174 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:51:50" (3/4) ... [2019-11-19 22:52:16,178 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:52:16,192 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-19 22:52:16,193 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-19 22:52:16,193 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 22:52:16,237 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ef1f824c-743b-4352-ad16-ad329063cffa/bin/uautomizer/witness.graphml [2019-11-19 22:52:16,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:52:16,239 INFO L168 Benchmark]: Toolchain (without parser) took 27366.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 960.4 MB in the beginning and 955.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 123.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:52:16,241 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:52:16,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:52:16,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:52:16,245 INFO L168 Benchmark]: Boogie Preprocessor took 40.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:52:16,246 INFO L168 Benchmark]: RCFGBuilder took 1277.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:52:16,246 INFO L168 Benchmark]: TraceAbstraction took 25474.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 961.7 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:52:16,248 INFO L168 Benchmark]: Witness Printer took 64.82 ms. Allocated memory is still 1.1 GB. Free memory was 961.7 MB in the beginning and 955.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:52:16,250 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 452.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1277.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25474.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 961.7 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. * Witness Printer took 64.82 ms. Allocated memory is still 1.1 GB. Free memory was 961.7 MB in the beginning and 955.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2019-11-19 22:52:16,256 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,256 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,256 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,257 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,257 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,257 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,258 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,258 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,258 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,258 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: (y == ~Pluszero~LONGDOUBLE() && 1bv32 == \result) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE())) == \result) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: y == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 17]: Loop Invariant [2019-11-19 22:52:16,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,269 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,270 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,270 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-19 22:52:16,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:52:16,270 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: y == ~Pluszero~LONGDOUBLE() && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE())) == \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 25.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, HoareTripleCheckerStatistics: 112 SDtfs, 56 SDslu, 198 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 18.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 47 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 10 QuantifiedInterpolants, 4279 SizeOfPredicates, 15 NumberOfNonLiveVariables, 151 ConjunctsInSsa, 19 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...