./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ......................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ..................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:41:30,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:41:30,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:41:30,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:41:30,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:41:30,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:41:30,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:41:30,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:41:30,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:41:30,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:41:30,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:41:30,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:41:30,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:41:30,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:41:30,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:41:30,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:41:30,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:41:30,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:41:30,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:41:30,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:41:30,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:41:30,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:41:30,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:41:30,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:41:30,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:41:30,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:41:30,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:41:30,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:41:30,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:41:30,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:41:30,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:41:30,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:41:30,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:41:30,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:41:30,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:41:30,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:41:30,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:41:30,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:41:30,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:41:30,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:41:30,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:41:30,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:41:31,012 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:41:31,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:41:31,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:41:31,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:41:31,014 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:41:31,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:41:31,014 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:41:31,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:41:31,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:41:31,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:41:31,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:41:31,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:41:31,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:41:31,016 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:41:31,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:41:31,016 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:41:31,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:41:31,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:41:31,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:41:31,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:41:31,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:41:31,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:41:31,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:41:31,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:41:31,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:41:31,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:41:31,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:41:31,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:41:31,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2019-11-15 23:41:31,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:41:31,064 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:41:31,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:41:31,069 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:41:31,069 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:41:31,070 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-11-15 23:41:31,122 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/data/f7b54e7e5/d24f84904e62404ebfca27595d7cd9e0/FLAG448dd5cec [2019-11-15 23:41:31,554 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:41:31,555 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-11-15 23:41:31,562 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/data/f7b54e7e5/d24f84904e62404ebfca27595d7cd9e0/FLAG448dd5cec [2019-11-15 23:41:31,579 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/data/f7b54e7e5/d24f84904e62404ebfca27595d7cd9e0 [2019-11-15 23:41:31,582 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:41:31,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:41:31,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:41:31,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:41:31,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:41:31,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:41:31" (1/1) ... [2019-11-15 23:41:31,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4270ec6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31, skipping insertion in model container [2019-11-15 23:41:31,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:41:31" (1/1) ... [2019-11-15 23:41:31,602 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:41:31,622 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:41:31,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:41:31,883 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:41:31,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:41:31,926 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:41:31,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31 WrapperNode [2019-11-15 23:41:31,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:41:31,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:41:31,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:41:31,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:41:31,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31" (1/1) ... [2019-11-15 23:41:31,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31" (1/1) ... [2019-11-15 23:41:31,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:41:31,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:41:31,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:41:31,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:41:31,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31" (1/1) ... [2019-11-15 23:41:31,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31" (1/1) ... [2019-11-15 23:41:31,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31" (1/1) ... [2019-11-15 23:41:31,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31" (1/1) ... [2019-11-15 23:41:31,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31" (1/1) ... [2019-11-15 23:41:31,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31" (1/1) ... [2019-11-15 23:41:31,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31" (1/1) ... [2019-11-15 23:41:31,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:41:31,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:41:31,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:41:31,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:41:31,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:41:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:41:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 23:41:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:41:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 23:41:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:41:32,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:41:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:41:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:41:32,483 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:41:32,483 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-15 23:41:32,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:41:32 BoogieIcfgContainer [2019-11-15 23:41:32,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:41:32,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:41:32,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:41:32,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:41:32,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:41:31" (1/3) ... [2019-11-15 23:41:32,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454b659c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:41:32, skipping insertion in model container [2019-11-15 23:41:32,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:31" (2/3) ... [2019-11-15 23:41:32,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454b659c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:41:32, skipping insertion in model container [2019-11-15 23:41:32,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:41:32" (3/3) ... [2019-11-15 23:41:32,492 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2019-11-15 23:41:32,501 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:41:32,514 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:41:32,524 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:41:32,553 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:41:32,553 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:41:32,553 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:41:32,553 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:41:32,554 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:41:32,554 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:41:32,555 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:41:32,555 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:41:32,575 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-15 23:41:32,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:41:32,582 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:41:32,583 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:41:32,586 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:41:32,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:41:32,592 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2019-11-15 23:41:32,601 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:41:32,602 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557989468] [2019-11-15 23:41:32,602 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:41:32,602 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:41:32,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:41:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:41:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:41:32,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557989468] [2019-11-15 23:41:32,688 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:41:32,688 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:41:32,688 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734240677] [2019-11-15 23:41:32,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:41:32,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:41:32,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:41:32,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:41:32,706 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-15 23:41:32,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:41:32,721 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2019-11-15 23:41:32,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:41:32,722 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:41:32,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:41:32,730 INFO L225 Difference]: With dead ends: 50 [2019-11-15 23:41:32,731 INFO L226 Difference]: Without dead ends: 23 [2019-11-15 23:41:32,733 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:41:32,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-15 23:41:32,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-15 23:41:32,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-15 23:41:32,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2019-11-15 23:41:32,760 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2019-11-15 23:41:32,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:41:32,761 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-11-15 23:41:32,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:41:32,761 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2019-11-15 23:41:32,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:41:32,762 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:41:32,762 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:41:32,762 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:41:32,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:41:32,763 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2019-11-15 23:41:32,763 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:41:32,763 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904399545] [2019-11-15 23:41:32,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:41:32,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:41:32,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:41:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:41:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:41:32,874 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:41:32,875 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:41:32,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:41:32 BoogieIcfgContainer [2019-11-15 23:41:32,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:41:32,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:41:32,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:41:32,903 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:41:32,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:41:32" (3/4) ... [2019-11-15 23:41:32,906 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:41:32,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:41:32,908 INFO L168 Benchmark]: Toolchain (without parser) took 1324.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -141.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:41:32,908 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:41:32,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:41:32,910 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:41:32,910 INFO L168 Benchmark]: Boogie Preprocessor took 28.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:41:32,911 INFO L168 Benchmark]: RCFGBuilder took 488.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:41:32,911 INFO L168 Benchmark]: TraceAbstraction took 416.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:41:32,912 INFO L168 Benchmark]: Witness Printer took 4.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:41:32,915 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 488.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 416.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 71]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 66, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; [L15] __int32_t i0, j0; [L16] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (i0) = gf_u.word [L22] ix = (i0 & 0x7fffffff) [L23] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L24] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L44] COND FALSE !(!((ix) < 0x7f800000L)) [L47] return x; VAL [huge_floor=1000000000000000000000000000000] [L67] float res = floor_float(x); [L58] return x != x; VAL [huge_floor=1000000000000000000000000000000] [L70] COND TRUE !isnan_float(res) [L71] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 34 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=26occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 23:41:35,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:41:35,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:41:35,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:41:35,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:41:35,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:41:35,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:41:35,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:41:35,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:41:35,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:41:35,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:41:35,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:41:35,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:41:35,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:41:35,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:41:35,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:41:35,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:41:35,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:41:35,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:41:35,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:41:35,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:41:35,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:41:35,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:41:35,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:41:35,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:41:35,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:41:35,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:41:35,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:41:35,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:41:35,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:41:35,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:41:35,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:41:35,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:41:35,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:41:35,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:41:35,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:41:35,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:41:35,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:41:35,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:41:35,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:41:35,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:41:35,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:41:35,179 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:41:35,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:41:35,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:41:35,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:41:35,181 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:41:35,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:41:35,182 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:41:35,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:41:35,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:41:35,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:41:35,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:41:35,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:41:35,183 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:41:35,183 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:41:35,183 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:41:35,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:41:35,183 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:41:35,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:41:35,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:41:35,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:41:35,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:41:35,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:41:35,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:41:35,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:41:35,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:41:35,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:41:35,185 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:41:35,186 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:41:35,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:41:35,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:41:35,186 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2019-11-15 23:41:35,215 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:41:35,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:41:35,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:41:35,230 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:41:35,230 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:41:35,231 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-11-15 23:41:35,285 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/data/2b51e4934/bed91032ae144220ad2ba3215d2f560c/FLAGca65efb21 [2019-11-15 23:41:35,648 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:41:35,649 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-11-15 23:41:35,656 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/data/2b51e4934/bed91032ae144220ad2ba3215d2f560c/FLAGca65efb21 [2019-11-15 23:41:36,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/data/2b51e4934/bed91032ae144220ad2ba3215d2f560c [2019-11-15 23:41:36,023 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:41:36,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:41:36,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:41:36,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:41:36,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:41:36,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:41:36" (1/1) ... [2019-11-15 23:41:36,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769a3046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36, skipping insertion in model container [2019-11-15 23:41:36,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:41:36" (1/1) ... [2019-11-15 23:41:36,039 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:41:36,066 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:41:36,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:41:36,258 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:41:36,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:41:36,317 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:41:36,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36 WrapperNode [2019-11-15 23:41:36,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:41:36,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:41:36,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:41:36,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:41:36,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36" (1/1) ... [2019-11-15 23:41:36,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36" (1/1) ... [2019-11-15 23:41:36,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:41:36,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:41:36,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:41:36,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:41:36,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36" (1/1) ... [2019-11-15 23:41:36,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36" (1/1) ... [2019-11-15 23:41:36,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36" (1/1) ... [2019-11-15 23:41:36,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36" (1/1) ... [2019-11-15 23:41:36,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36" (1/1) ... [2019-11-15 23:41:36,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36" (1/1) ... [2019-11-15 23:41:36,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36" (1/1) ... [2019-11-15 23:41:36,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:41:36,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:41:36,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:41:36,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:41:36,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:41:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:41:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 23:41:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:41:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:41:36,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:41:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 23:41:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 23:41:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:41:37,033 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:41:37,033 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-15 23:41:37,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:41:37 BoogieIcfgContainer [2019-11-15 23:41:37,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:41:37,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:41:37,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:41:37,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:41:37,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:41:36" (1/3) ... [2019-11-15 23:41:37,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59213615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:41:37, skipping insertion in model container [2019-11-15 23:41:37,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:41:36" (2/3) ... [2019-11-15 23:41:37,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59213615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:41:37, skipping insertion in model container [2019-11-15 23:41:37,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:41:37" (3/3) ... [2019-11-15 23:41:37,042 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2019-11-15 23:41:37,052 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:41:37,063 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:41:37,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:41:37,100 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:41:37,101 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:41:37,101 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:41:37,101 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:41:37,101 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:41:37,101 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:41:37,102 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:41:37,102 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:41:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-15 23:41:37,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:41:37,131 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:41:37,133 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:41:37,136 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:41:37,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:41:37,143 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2019-11-15 23:41:37,156 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:41:37,156 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313868195] [2019-11-15 23:41:37,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 23:41:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:41:37,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 23:41:37,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:41:37,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:41:37,248 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:41:37,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:41:37,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313868195] [2019-11-15 23:41:37,253 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:41:37,253 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 23:41:37,254 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211890250] [2019-11-15 23:41:37,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:41:37,257 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:41:37,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:41:37,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:41:37,269 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-15 23:41:37,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:41:37,287 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2019-11-15 23:41:37,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:41:37,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:41:37,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:41:37,299 INFO L225 Difference]: With dead ends: 50 [2019-11-15 23:41:37,300 INFO L226 Difference]: Without dead ends: 23 [2019-11-15 23:41:37,303 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:41:37,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-15 23:41:37,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-15 23:41:37,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-15 23:41:37,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2019-11-15 23:41:37,341 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2019-11-15 23:41:37,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:41:37,341 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-11-15 23:41:37,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:41:37,342 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2019-11-15 23:41:37,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:41:37,343 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:41:37,343 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:41:37,556 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:41:37,557 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:41:37,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:41:37,558 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2019-11-15 23:41:37,559 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:41:37,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72493582] [2019-11-15 23:41:37,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 23:41:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:41:37,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 23:41:37,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:41:37,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:41:37,740 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:41:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:41:37,797 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72493582] [2019-11-15 23:41:37,797 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:41:37,797 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-15 23:41:37,798 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133675155] [2019-11-15 23:41:37,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:41:37,801 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:41:37,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:41:37,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:41:37,803 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 8 states. [2019-11-15 23:41:38,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:41:38,177 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2019-11-15 23:41:38,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:41:38,178 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-15 23:41:38,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:41:38,179 INFO L225 Difference]: With dead ends: 34 [2019-11-15 23:41:38,180 INFO L226 Difference]: Without dead ends: 18 [2019-11-15 23:41:38,181 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:41:38,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-15 23:41:38,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-15 23:41:38,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-15 23:41:38,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-15 23:41:38,184 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2019-11-15 23:41:38,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:41:38,185 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-15 23:41:38,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:41:38,185 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-15 23:41:38,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 23:41:38,188 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:41:38,192 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:41:38,405 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 23:41:38,406 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:41:38,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:41:38,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1612289523, now seen corresponding path program 1 times [2019-11-15 23:41:38,406 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:41:38,407 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12743081] [2019-11-15 23:41:38,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 23:41:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:41:38,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 23:41:38,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:41:38,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:41:38,585 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:41:38,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:41:38,688 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12743081] [2019-11-15 23:41:38,688 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:41:38,688 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 23:41:38,688 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868432204] [2019-11-15 23:41:38,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:41:38,689 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:41:38,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:41:38,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:41:38,689 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2019-11-15 23:41:38,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:41:38,771 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-15 23:41:38,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:41:38,771 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-15 23:41:38,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:41:38,772 INFO L225 Difference]: With dead ends: 18 [2019-11-15 23:41:38,772 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:41:38,772 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:41:38,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:41:38,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:41:38,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:41:38,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:41:38,773 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-15 23:41:38,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:41:38,774 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:41:38,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:41:38,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:41:38,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:41:38,982 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 23:41:38,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:41:39,052 INFO L443 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-11-15 23:41:39,053 INFO L443 ceAbstractionStarter]: For program point L44(lines 44 47) no Hoare annotation was computed. [2019-11-15 23:41:39,053 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 23:41:39,053 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:41:39,053 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:41:39,053 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 48) no Hoare annotation was computed. [2019-11-15 23:41:39,053 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 53) no Hoare annotation was computed. [2019-11-15 23:41:39,053 INFO L443 ceAbstractionStarter]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2019-11-15 23:41:39,054 INFO L443 ceAbstractionStarter]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2019-11-15 23:41:39,054 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-11-15 23:41:39,054 INFO L443 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2019-11-15 23:41:39,054 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:41:39,054 INFO L443 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2019-11-15 23:41:39,054 INFO L439 ceAbstractionStarter]: At program point L58(line 58) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start_floor_float_~x .cse0))) [2019-11-15 23:41:39,055 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 42) no Hoare annotation was computed. [2019-11-15 23:41:39,055 INFO L439 ceAbstractionStarter]: At program point L54(lines 14 55) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~x .cse0))) [2019-11-15 23:41:39,055 INFO L443 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-11-15 23:41:39,055 INFO L439 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= ULTIMATE.start_floor_float_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-15 23:41:39,055 INFO L443 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-11-15 23:41:39,055 INFO L446 ceAbstractionStarter]: At program point L75(lines 60 76) the Hoare annotation is: true [2019-11-15 23:41:39,056 INFO L443 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2019-11-15 23:41:39,056 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-15 23:41:39,056 INFO L443 ceAbstractionStarter]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2019-11-15 23:41:39,056 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2019-11-15 23:41:39,056 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2019-11-15 23:41:39,056 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2019-11-15 23:41:39,064 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,074 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,075 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,076 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:41:39 BoogieIcfgContainer [2019-11-15 23:41:39,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:41:39,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:41:39,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:41:39,087 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:41:39,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:41:37" (3/4) ... [2019-11-15 23:41:39,092 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:41:39,113 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-15 23:41:39,126 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 23:41:39,155 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-15 23:41:39,156 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-15 23:41:39,186 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bc3c65fe-c8d4-478d-82fd-a135ae1cb775/bin/uautomizer/witness.graphml [2019-11-15 23:41:39,186 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:41:39,188 INFO L168 Benchmark]: Toolchain (without parser) took 3163.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 951.0 MB in the beginning and 968.0 MB in the end (delta: -17.0 MB). Peak memory consumption was 83.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:41:39,189 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:41:39,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.36 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:41:39,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -154.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:41:39,193 INFO L168 Benchmark]: Boogie Preprocessor took 33.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:41:39,196 INFO L168 Benchmark]: RCFGBuilder took 570.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:41:39,197 INFO L168 Benchmark]: TraceAbstraction took 2051.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.9 MB in the end (delta: 93.2 MB). Peak memory consumption was 93.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:41:39,197 INFO L168 Benchmark]: Witness Printer took 100.03 ms. Allocated memory is still 1.1 GB. Free memory was 974.9 MB in the beginning and 968.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:41:39,200 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.36 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 111.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -154.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 570.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2051.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.9 MB in the end (delta: 93.2 MB). Peak memory consumption was 93.2 MB. Max. memory is 11.5 GB. * Witness Printer took 100.03 ms. Allocated memory is still 1.1 GB. Free memory was 974.9 MB in the beginning and 968.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: 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: 17]: Loop Invariant [2019-11-15 23:41:39,206 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 58]: Loop Invariant [2019-11-15 23:41:39,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,208 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,208 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,208 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2019-11-15 23:41:39,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:41:39,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 19 SDslu, 66 SDs, 0 SdLazy, 49 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 36 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 2 QuantifiedInterpolants, 2748 SizeOfPredicates, 15 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...