./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e37ba74c70ee452f780b10cba83059c905066e35 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e37ba74c70ee452f780b10cba83059c905066e35 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:47:28,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:47:28,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:47:28,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:47:28,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:47:28,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:47:28,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:47:28,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:47:28,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:47:28,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:47:28,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:47:28,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:47:28,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:47:28,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:47:28,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:47:28,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:47:28,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:47:28,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:47:28,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:47:28,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:47:28,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:47:28,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:47:28,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:47:28,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:47:28,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:47:28,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:47:28,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:47:28,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:47:28,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:47:28,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:47:28,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:47:28,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:47:28,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:47:28,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:47:28,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:47:28,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:47:28,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:47:28,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:47:28,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:47:28,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:47:28,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:47:28,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:47:28,253 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:47:28,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:47:28,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:47:28,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:47:28,255 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:47:28,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:47:28,256 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:47:28,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:47:28,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:47:28,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:47:28,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:47:28,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:47:28,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:47:28,258 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:47:28,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:47:28,258 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:47:28,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:47:28,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:47:28,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:47:28,260 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:47:28,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:47:28,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:47:28,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:47:28,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:47:28,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:47:28,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:47:28,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:47:28,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:47:28,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:47:28,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37ba74c70ee452f780b10cba83059c905066e35 [2020-11-29 18:47:28,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:47:28,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:47:28,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:47:28,552 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:47:28,554 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:47:28,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-11-29 18:47:28,632 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/data/7307b21a9/7e734cbbe71845dd915999a3e5513c51/FLAG78e911c37 [2020-11-29 18:47:29,287 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:47:29,288 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-11-29 18:47:29,298 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/data/7307b21a9/7e734cbbe71845dd915999a3e5513c51/FLAG78e911c37 [2020-11-29 18:47:29,596 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/data/7307b21a9/7e734cbbe71845dd915999a3e5513c51 [2020-11-29 18:47:29,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:47:29,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:47:29,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:47:29,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:47:29,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:47:29,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:29" (1/1) ... [2020-11-29 18:47:29,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b80bbf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:29, skipping insertion in model container [2020-11-29 18:47:29,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:29" (1/1) ... [2020-11-29 18:47:29,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:47:29,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:47:29,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:47:29,933 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:47:29,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:47:30,000 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:47:30,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30 WrapperNode [2020-11-29 18:47:30,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:47:30,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:47:30,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:47:30,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:47:30,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30" (1/1) ... [2020-11-29 18:47:30,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30" (1/1) ... [2020-11-29 18:47:30,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:47:30,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:47:30,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:47:30,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:47:30,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30" (1/1) ... [2020-11-29 18:47:30,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30" (1/1) ... [2020-11-29 18:47:30,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30" (1/1) ... [2020-11-29 18:47:30,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30" (1/1) ... [2020-11-29 18:47:30,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30" (1/1) ... [2020-11-29 18:47:30,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30" (1/1) ... [2020-11-29 18:47:30,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30" (1/1) ... [2020-11-29 18:47:30,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:47:30,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:47:30,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:47:30,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:47:30,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/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 [2020-11-29 18:47:30,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:47:30,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:47:30,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 18:47:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 18:47:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 18:47:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:47:30,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:47:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:47:30,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-29 18:47:30,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:47:30,859 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:47:30,859 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-29 18:47:30,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:30 BoogieIcfgContainer [2020-11-29 18:47:30,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:47:30,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:47:30,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:47:30,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:47:30,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:47:29" (1/3) ... [2020-11-29 18:47:30,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df67f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:47:30, skipping insertion in model container [2020-11-29 18:47:30,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:30" (2/3) ... [2020-11-29 18:47:30,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df67f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:47:30, skipping insertion in model container [2020-11-29 18:47:30,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:30" (3/3) ... [2020-11-29 18:47:30,877 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2020-11-29 18:47:30,891 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:47:30,894 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:47:30,906 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:47:30,932 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:47:30,935 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:47:30,935 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:47:30,935 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:47:30,935 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:47:30,935 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:47:30,936 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:47:30,936 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:47:30,949 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-11-29 18:47:30,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 18:47:30,955 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:30,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:30,956 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:47:30,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:30,962 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-11-29 18:47:30,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:47:30,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588826249] [2020-11-29 18:47:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:47:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:31,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:31,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588826249] [2020-11-29 18:47:31,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:31,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:47:31,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706134651] [2020-11-29 18:47:31,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:47:31,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:47:31,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:47:31,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:47:31,111 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-11-29 18:47:31,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:31,133 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-11-29 18:47:31,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:47:31,135 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 18:47:31,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:31,145 INFO L225 Difference]: With dead ends: 109 [2020-11-29 18:47:31,145 INFO L226 Difference]: Without dead ends: 52 [2020-11-29 18:47:31,148 INFO L677 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 [2020-11-29 18:47:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-29 18:47:31,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-29 18:47:31,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-29 18:47:31,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-11-29 18:47:31,185 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-11-29 18:47:31,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:31,185 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-11-29 18:47:31,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:47:31,185 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-11-29 18:47:31,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 18:47:31,186 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:31,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:31,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:47:31,187 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:47:31,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:31,188 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-11-29 18:47:31,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:47:31,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224580548] [2020-11-29 18:47:31,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:47:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:31,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:31,368 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:31,414 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:47:31,415 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:47:31,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:47:31,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:47:31 BoogieIcfgContainer [2020-11-29 18:47:31,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:47:31,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:47:31,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:47:31,472 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:47:31,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:30" (3/4) ... [2020-11-29 18:47:31,475 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:47:31,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:47:31,480 INFO L168 Benchmark]: Toolchain (without parser) took 1875.48 ms. Allocated memory is still 109.1 MB. Free memory was 80.1 MB in the beginning and 55.2 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:31,481 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory was 38.0 MB in the beginning and 37.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:47:31,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.69 ms. Allocated memory is still 109.1 MB. Free memory was 79.7 MB in the beginning and 81.7 MB in the end (delta: -1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:31,483 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.20 ms. Allocated memory is still 109.1 MB. Free memory was 81.7 MB in the beginning and 79.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:31,484 INFO L168 Benchmark]: Boogie Preprocessor took 51.65 ms. Allocated memory is still 109.1 MB. Free memory was 79.3 MB in the beginning and 77.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:31,485 INFO L168 Benchmark]: RCFGBuilder took 735.74 ms. Allocated memory is still 109.1 MB. Free memory was 77.2 MB in the beginning and 82.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:31,487 INFO L168 Benchmark]: TraceAbstraction took 607.63 ms. Allocated memory is still 109.1 MB. Free memory was 81.9 MB in the beginning and 55.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:31,488 INFO L168 Benchmark]: Witness Printer took 4.98 ms. Allocated memory is still 109.1 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:47:31,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory was 38.0 MB in the beginning and 37.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 395.69 ms. Allocated memory is still 109.1 MB. Free memory was 79.7 MB in the beginning and 81.7 MB in the end (delta: -1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.20 ms. Allocated memory is still 109.1 MB. Free memory was 81.7 MB in the beginning and 79.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.65 ms. Allocated memory is still 109.1 MB. Free memory was 79.3 MB in the beginning and 77.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 735.74 ms. Allocated memory is still 109.1 MB. Free memory was 77.2 MB in the beginning and 82.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 607.63 ms. Allocated memory is still 109.1 MB. Free memory was 81.9 MB in the beginning and 55.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.98 ms. Allocated memory is still 109.1 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L172] double x = -1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L174] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L177] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1122b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 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=56occurred 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, ACCELERATED_INTERPOLATION: 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 0.2.0-a4ecdab [2020-11-29 18:47:34,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:47:34,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:47:34,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:47:34,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:47:34,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:47:34,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:47:34,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:47:34,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:47:34,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:47:34,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:47:34,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:47:34,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:47:34,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:47:34,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:47:34,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:47:34,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:47:34,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:47:34,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:47:34,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:47:34,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:47:34,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:47:34,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:47:34,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:47:34,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:47:34,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:47:34,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:47:34,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:47:34,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:47:34,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:47:34,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:47:34,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:47:34,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:47:34,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:47:34,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:47:34,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:47:34,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:47:34,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:47:34,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:47:34,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:47:34,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:47:34,147 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 18:47:34,194 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:47:34,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:47:34,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:47:34,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:47:34,197 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:47:34,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:47:34,198 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:47:34,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:47:34,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:47:34,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:47:34,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:47:34,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:47:34,201 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 18:47:34,201 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 18:47:34,201 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:47:34,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:47:34,202 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:47:34,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:47:34,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:47:34,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:47:34,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:47:34,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:47:34,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:47:34,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:47:34,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:47:34,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:47:34,205 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 18:47:34,205 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 18:47:34,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:47:34,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:47:34,206 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 18:47:34,206 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37ba74c70ee452f780b10cba83059c905066e35 [2020-11-29 18:47:34,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:47:34,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:47:34,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:47:34,684 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:47:34,685 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:47:34,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-11-29 18:47:34,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/data/532d01439/424ac3717f81463ba6f3e8472470319c/FLAGbcfca7e87 [2020-11-29 18:47:35,327 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:47:35,328 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-11-29 18:47:35,338 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/data/532d01439/424ac3717f81463ba6f3e8472470319c/FLAGbcfca7e87 [2020-11-29 18:47:35,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/data/532d01439/424ac3717f81463ba6f3e8472470319c [2020-11-29 18:47:35,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:47:35,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:47:35,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:47:35,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:47:35,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:47:35,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:35" (1/1) ... [2020-11-29 18:47:35,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c73290c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:35, skipping insertion in model container [2020-11-29 18:47:35,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:35" (1/1) ... [2020-11-29 18:47:35,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:47:35,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:47:35,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:47:36,003 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:47:36,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:47:36,107 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:47:36,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36 WrapperNode [2020-11-29 18:47:36,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:47:36,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:47:36,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:47:36,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:47:36,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36" (1/1) ... [2020-11-29 18:47:36,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36" (1/1) ... [2020-11-29 18:47:36,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:47:36,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:47:36,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:47:36,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:47:36,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36" (1/1) ... [2020-11-29 18:47:36,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36" (1/1) ... [2020-11-29 18:47:36,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36" (1/1) ... [2020-11-29 18:47:36,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36" (1/1) ... [2020-11-29 18:47:36,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36" (1/1) ... [2020-11-29 18:47:36,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36" (1/1) ... [2020-11-29 18:47:36,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36" (1/1) ... [2020-11-29 18:47:36,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:47:36,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:47:36,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:47:36,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:47:36,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/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 [2020-11-29 18:47:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-29 18:47:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-29 18:47:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 18:47:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:47:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-11-29 18:47:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 18:47:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:47:36,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:47:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 18:47:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:47:40,094 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:47:40,094 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-29 18:47:40,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:40 BoogieIcfgContainer [2020-11-29 18:47:40,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:47:40,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:47:40,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:47:40,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:47:40,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:47:35" (1/3) ... [2020-11-29 18:47:40,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bde6d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:47:40, skipping insertion in model container [2020-11-29 18:47:40,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:36" (2/3) ... [2020-11-29 18:47:40,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bde6d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:47:40, skipping insertion in model container [2020-11-29 18:47:40,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:40" (3/3) ... [2020-11-29 18:47:40,105 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2020-11-29 18:47:40,116 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:47:40,121 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:47:40,133 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:47:40,157 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:47:40,157 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:47:40,157 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:47:40,157 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:47:40,157 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:47:40,158 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:47:40,158 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:47:40,158 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:47:40,171 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-11-29 18:47:40,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 18:47:40,176 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:40,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:40,177 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:47:40,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:40,183 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-11-29 18:47:40,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:40,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718072026] [2020-11-29 18:47:40,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/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 [2020-11-29 18:47:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:41,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 18:47:41,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:41,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:41,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:41,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718072026] [2020-11-29 18:47:41,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:41,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 18:47:41,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878515873] [2020-11-29 18:47:41,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:47:41,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:41,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:47:41,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:47:41,461 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-11-29 18:47:41,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:41,495 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-11-29 18:47:41,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:47:41,496 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 18:47:41,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:41,505 INFO L225 Difference]: With dead ends: 109 [2020-11-29 18:47:41,505 INFO L226 Difference]: Without dead ends: 52 [2020-11-29 18:47:41,508 INFO L677 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 [2020-11-29 18:47:41,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-29 18:47:41,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-29 18:47:41,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-29 18:47:41,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-11-29 18:47:41,540 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-11-29 18:47:41,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:41,541 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-11-29 18:47:41,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:47:41,541 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-11-29 18:47:41,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 18:47:41,542 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:41,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:41,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 18:47:41,748 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:47:41,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:41,749 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-11-29 18:47:41,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:41,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654882954] [2020-11-29 18:47:41,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/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 [2020-11-29 18:47:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:42,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 18:47:42,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:55,061 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification that was a NOOP. DAG size: 12 [2020-11-29 18:48:04,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:48:04,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:48:16,848 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-11-29 18:48:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:48:19,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654882954] [2020-11-29 18:48:19,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:48:19,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-29 18:48:19,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030863141] [2020-11-29 18:48:19,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 18:48:19,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:48:19,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 18:48:19,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=4, NotChecked=16, Total=110 [2020-11-29 18:48:19,139 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 11 states. [2020-11-29 18:48:25,246 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_fmod_double_~x (fp.div c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (_ +zero 11 53)))) is different from true [2020-11-29 18:48:27,687 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (= |c_ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (not (fp.eq |c_ULTIMATE.start_fmod_double_#res| |c_ULTIMATE.start_fmod_double_#res|))) is different from false [2020-11-29 18:48:44,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:48:44,531 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2020-11-29 18:48:44,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:48:44,570 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-11-29 18:48:44,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:48:44,571 INFO L225 Difference]: With dead ends: 57 [2020-11-29 18:48:44,571 INFO L226 Difference]: Without dead ends: 52 [2020-11-29 18:48:44,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 43.2s TimeCoverageRelationStatistics Valid=34, Invalid=82, Unknown=6, NotChecked=60, Total=182 [2020-11-29 18:48:44,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-29 18:48:44,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-29 18:48:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-29 18:48:44,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-11-29 18:48:44,581 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-11-29 18:48:44,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:48:44,581 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-11-29 18:48:44,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 18:48:44,582 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-11-29 18:48:44,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 18:48:44,583 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:48:44,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:48:44,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 18:48:44,788 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:48:44,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:48:44,788 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-11-29 18:48:44,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:48:44,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387028776] [2020-11-29 18:48:44,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/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 [2020-11-29 18:48:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:48:44,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 18:48:44,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:48:45,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:48:45,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:48:45,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:48:45,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387028776] [2020-11-29 18:48:45,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:48:45,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 18:48:45,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556580292] [2020-11-29 18:48:45,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 18:48:45,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:48:45,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 18:48:45,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:48:45,336 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 8 states. [2020-11-29 18:48:45,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:48:45,532 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2020-11-29 18:48:45,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:48:45,533 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-11-29 18:48:45,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:48:45,533 INFO L225 Difference]: With dead ends: 52 [2020-11-29 18:48:45,533 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:48:45,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:48:45,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:48:45,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:48:45,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:48:45,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:48:45,534 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-11-29 18:48:45,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:48:45,534 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:48:45,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 18:48:45,535 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:48:45,535 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:48:45,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 18:48:45,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:48:50,506 WARN L193 SmtUtils]: Spent 4.73 s on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2020-11-29 18:48:56,960 WARN L193 SmtUtils]: Spent 6.44 s on a formula simplification. DAG size of input: 15 DAG size of output: 3 [2020-11-29 18:48:56,965 INFO L274 CegarLoopResult]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2020-11-29 18:48:56,966 INFO L270 CegarLoopResult]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2020-11-29 18:48:56,966 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 18:48:56,966 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 18:48:56,966 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:48:56,966 INFO L274 CegarLoopResult]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2020-11-29 18:48:56,966 INFO L274 CegarLoopResult]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2020-11-29 18:48:56,966 INFO L270 CegarLoopResult]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2020-11-29 18:48:56,966 INFO L274 CegarLoopResult]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2020-11-29 18:48:56,967 INFO L274 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-11-29 18:48:56,967 INFO L274 CegarLoopResult]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2020-11-29 18:48:56,967 INFO L274 CegarLoopResult]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2020-11-29 18:48:56,967 INFO L270 CegarLoopResult]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2020-11-29 18:48:56,967 INFO L274 CegarLoopResult]: For program point L154(lines 154 159) no Hoare annotation was computed. [2020-11-29 18:48:56,967 INFO L274 CegarLoopResult]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2020-11-29 18:48:56,967 INFO L274 CegarLoopResult]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2020-11-29 18:48:56,967 INFO L274 CegarLoopResult]: For program point L55(lines 25 163) no Hoare annotation was computed. [2020-11-29 18:48:56,967 INFO L274 CegarLoopResult]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2020-11-29 18:48:56,967 INFO L274 CegarLoopResult]: For program point L56(lines 56 62) no Hoare annotation was computed. [2020-11-29 18:48:56,967 INFO L274 CegarLoopResult]: For program point L106(lines 106 107) no Hoare annotation was computed. [2020-11-29 18:48:56,967 INFO L274 CegarLoopResult]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2020-11-29 18:48:56,968 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2020-11-29 18:48:56,968 INFO L270 CegarLoopResult]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2020-11-29 18:48:56,968 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:48:56,968 INFO L270 CegarLoopResult]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2020-11-29 18:48:56,968 INFO L274 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-11-29 18:48:56,968 INFO L274 CegarLoopResult]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2020-11-29 18:48:56,968 INFO L274 CegarLoopResult]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2020-11-29 18:48:56,968 INFO L270 CegarLoopResult]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2020-11-29 18:48:56,968 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:48:56,968 INFO L274 CegarLoopResult]: For program point L177(lines 177 180) no Hoare annotation was computed. [2020-11-29 18:48:56,969 INFO L274 CegarLoopResult]: For program point L144(lines 144 153) no Hoare annotation was computed. [2020-11-29 18:48:56,969 INFO L274 CegarLoopResult]: For program point L45(lines 45 47) no Hoare annotation was computed. [2020-11-29 18:48:56,969 INFO L274 CegarLoopResult]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2020-11-29 18:48:56,969 INFO L270 CegarLoopResult]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2020-11-29 18:48:56,969 INFO L274 CegarLoopResult]: For program point L112(lines 112 113) no Hoare annotation was computed. [2020-11-29 18:48:56,969 INFO L270 CegarLoopResult]: At program point L162(lines 25 163) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) [2020-11-29 18:48:56,969 INFO L270 CegarLoopResult]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2020-11-29 18:48:56,969 INFO L274 CegarLoopResult]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2020-11-29 18:48:56,970 INFO L274 CegarLoopResult]: For program point L147(lines 147 153) no Hoare annotation was computed. [2020-11-29 18:48:56,970 INFO L274 CegarLoopResult]: For program point L81(lines 81 87) no Hoare annotation was computed. [2020-11-29 18:48:56,970 INFO L274 CegarLoopResult]: For program point L48(lines 48 53) no Hoare annotation was computed. [2020-11-29 18:48:56,970 INFO L274 CegarLoopResult]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2020-11-29 18:48:56,970 INFO L274 CegarLoopResult]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2020-11-29 18:48:56,970 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:48:56,970 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 18:48:56,970 INFO L274 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2020-11-29 18:48:56,970 INFO L274 CegarLoopResult]: For program point L66(lines 25 163) no Hoare annotation was computed. [2020-11-29 18:48:56,970 INFO L277 CegarLoopResult]: At program point L182(lines 165 183) the Hoare annotation is: true [2020-11-29 18:48:56,971 INFO L274 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2020-11-29 18:48:56,971 INFO L274 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-11-29 18:48:56,971 INFO L270 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) [2020-11-29 18:48:56,971 INFO L274 CegarLoopResult]: For program point L134(lines 134 161) no Hoare annotation was computed. [2020-11-29 18:48:56,971 INFO L274 CegarLoopResult]: For program point L35(lines 35 40) no Hoare annotation was computed. [2020-11-29 18:48:56,971 INFO L274 CegarLoopResult]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2020-11-29 18:48:56,971 INFO L274 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-11-29 18:48:56,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 18:48:56,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 18:48:57,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 18:48:57,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 18:48:57,001 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 18:48:57,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 18:48:57,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 18:48:57,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 18:48:57,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:48:57 BoogieIcfgContainer [2020-11-29 18:48:57,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:48:57,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:48:57,013 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:48:57,013 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:48:57,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:40" (3/4) ... [2020-11-29 18:48:57,017 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:48:57,035 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 18:48:57,036 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-29 18:48:57,039 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:48:57,040 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:48:57,092 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_beea0dff-aafb-4ca4-b30d-72887a326795/bin/uautomizer/witness.graphml [2020-11-29 18:48:57,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:48:57,099 INFO L168 Benchmark]: Toolchain (without parser) took 81415.71 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 35.6 MB in the beginning and 54.0 MB in the end (delta: -18.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:48:57,100 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory was 39.1 MB in the beginning and 39.0 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:48:57,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.53 ms. Allocated memory is still 56.6 MB. Free memory was 35.3 MB in the beginning and 36.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:57,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.45 ms. Allocated memory is still 56.6 MB. Free memory was 36.7 MB in the beginning and 34.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:57,102 INFO L168 Benchmark]: Boogie Preprocessor took 57.06 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 32.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:57,106 INFO L168 Benchmark]: RCFGBuilder took 3872.48 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 32.1 MB in the beginning and 52.0 MB in the end (delta: -19.9 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:57,107 INFO L168 Benchmark]: TraceAbstraction took 76909.10 ms. Allocated memory is still 75.5 MB. Free memory was 51.7 MB in the beginning and 31.1 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:57,107 INFO L168 Benchmark]: Witness Printer took 84.83 ms. Allocated memory is still 75.5 MB. Free memory was 56.6 MB in the beginning and 54.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:57,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory was 39.1 MB in the beginning and 39.0 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 422.53 ms. Allocated memory is still 56.6 MB. Free memory was 35.3 MB in the beginning and 36.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.45 ms. Allocated memory is still 56.6 MB. Free memory was 36.7 MB in the beginning and 34.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.06 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 32.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3872.48 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 32.1 MB in the beginning and 52.0 MB in the end (delta: -19.9 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 76909.10 ms. Allocated memory is still 75.5 MB. Free memory was 51.7 MB in the beginning and 31.1 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * Witness Printer took 84.83 ms. Allocated memory is still 75.5 MB. Free memory was 56.6 MB in the beginning and 54.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant [2020-11-29 18:48:57,120 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 18:48:57,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 18:48:57,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 18:48:57,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 18:48:57,121 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 18:48:57,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 18:48:57,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 18:48:57,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 65.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 25.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 160 SDtfs, 6 SDslu, 343 SDs, 0 SdLazy, 24 SolverSat, 2 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 43.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 28 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 59 FormulaSimplificationTreeSizeReductionInter, 11.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 36.8s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 14 QuantifiedInterpolants, 5495 SizeOfPredicates, 19 NumberOfNonLiveVariables, 215 ConjunctsInSsa, 21 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...