./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/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 fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 ......................................................................................................................................................................................................................................................................................................... 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_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/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 fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 06:49:42,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:49:42,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:49:43,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 06:49:43,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 06:49:43,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 06:49:43,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 06:49:43,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 06:49:43,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 06:49:43,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 06:49:43,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 06:49:43,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 06:49:43,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:49:43,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:49:43,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:49:43,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:49:43,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:49:43,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:49:43,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:49:43,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:49:43,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:49:43,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:49:43,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:49:43,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:49:43,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 06:49:43,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 06:49:43,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 06:49:43,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 06:49:43,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 06:49:43,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 06:49:43,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:49:43,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:49:43,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:49:43,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:49:43,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:49:43,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:49:43,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:49:43,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:49:43,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:49:43,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:49:43,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:49:43,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 06:49:43,103 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:49:43,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:49:43,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:49:43,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:49:43,108 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 06:49:43,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:49:43,109 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 06:49:43,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 06:49:43,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 06:49:43,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:49:43,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 06:49:43,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 06:49:43,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 06:49:43,111 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 06:49:43,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 06:49:43,111 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:49:43,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 06:49:43,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:49:43,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 06:49:43,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 06:49:43,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 06:49:43,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:49:43,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:49:43,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 06:49:43,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 06:49:43,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 06:49:43,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 06:49:43,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 06:49:43,115 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_e206703a-add4-4a7a-9d1c-f38dac355ba8/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 -> fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 [2019-11-20 06:49:43,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:49:43,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:49:43,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:49:43,288 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:49:43,288 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:49:43,289 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-20 06:49:43,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/data/295b17323/563ef9d4d9ee4796bb02049ef4b30ee2/FLAG957c04719 [2019-11-20 06:49:43,769 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:49:43,769 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-20 06:49:43,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/data/295b17323/563ef9d4d9ee4796bb02049ef4b30ee2/FLAG957c04719 [2019-11-20 06:49:43,788 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/data/295b17323/563ef9d4d9ee4796bb02049ef4b30ee2 [2019-11-20 06:49:43,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:49:43,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 06:49:43,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:49:43,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:49:43,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:49:43,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:49:43" (1/1) ... [2019-11-20 06:49:43,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3ed738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:43, skipping insertion in model container [2019-11-20 06:49:43,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:49:43" (1/1) ... [2019-11-20 06:49:43,807 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:49:43,833 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:49:44,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:49:44,186 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:49:44,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:49:44,254 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:49:44,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44 WrapperNode [2019-11-20 06:49:44,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:49:44,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 06:49:44,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 06:49:44,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 06:49:44,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44" (1/1) ... [2019-11-20 06:49:44,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44" (1/1) ... [2019-11-20 06:49:44,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 06:49:44,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:49:44,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:49:44,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:49:44,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44" (1/1) ... [2019-11-20 06:49:44,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44" (1/1) ... [2019-11-20 06:49:44,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44" (1/1) ... [2019-11-20 06:49:44,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44" (1/1) ... [2019-11-20 06:49:44,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44" (1/1) ... [2019-11-20 06:49:44,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44" (1/1) ... [2019-11-20 06:49:44,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44" (1/1) ... [2019-11-20 06:49:44,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:49:44,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:49:44,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:49:44,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:49:44,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/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 [2019-11-20 06:49:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 06:49:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 06:49:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 06:49:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 06:49:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:49:44,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:49:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 06:49:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-20 06:49:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 06:49:44,890 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:49:44,890 INFO L285 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-20 06:49:44,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:49:44 BoogieIcfgContainer [2019-11-20 06:49:44,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:49:44,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 06:49:44,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 06:49:44,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 06:49:44,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:49:43" (1/3) ... [2019-11-20 06:49:44,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb60390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:49:44, skipping insertion in model container [2019-11-20 06:49:44,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:44" (2/3) ... [2019-11-20 06:49:44,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb60390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:49:44, skipping insertion in model container [2019-11-20 06:49:44,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:49:44" (3/3) ... [2019-11-20 06:49:44,905 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2019-11-20 06:49:44,915 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 06:49:44,922 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 06:49:44,936 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 06:49:44,974 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 06:49:44,974 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 06:49:44,974 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 06:49:44,975 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 06:49:44,975 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 06:49:44,976 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 06:49:44,976 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 06:49:44,976 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 06:49:44,998 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-20 06:49:45,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 06:49:45,007 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:49:45,008 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:49:45,009 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:49:45,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:49:45,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2019-11-20 06:49:45,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:49:45,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330316839] [2019-11-20 06:49:45,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:49:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:49:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:49:45,229 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330316839] [2019-11-20 06:49:45,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:49:45,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 06:49:45,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502049584] [2019-11-20 06:49:45,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 06:49:45,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:49:45,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 06:49:45,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 06:49:45,249 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-20 06:49:45,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:49:45,266 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-20 06:49:45,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 06:49:45,268 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 06:49:45,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:49:45,276 INFO L225 Difference]: With dead ends: 72 [2019-11-20 06:49:45,276 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 06:49:45,279 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 06:49:45,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 06:49:45,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-20 06:49:45,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 06:49:45,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-20 06:49:45,316 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2019-11-20 06:49:45,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:49:45,316 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-20 06:49:45,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 06:49:45,317 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-20 06:49:45,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 06:49:45,318 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:49:45,318 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:49:45,318 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:49:45,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:49:45,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2019-11-20 06:49:45,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:49:45,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234207102] [2019-11-20 06:49:45,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:49:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:49:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:49:45,452 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:49:45,452 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 06:49:45,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:49:45 BoogieIcfgContainer [2019-11-20 06:49:45,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 06:49:45,505 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 06:49:45,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 06:49:45,506 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 06:49:45,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:49:44" (3/4) ... [2019-11-20 06:49:45,511 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 06:49:45,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 06:49:45,515 INFO L168 Benchmark]: Toolchain (without parser) took 1721.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -129.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2019-11-20 06:49:45,516 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:49:45,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-20 06:49:45,518 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.85 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 06:49:45,519 INFO L168 Benchmark]: Boogie Preprocessor took 57.22 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. [2019-11-20 06:49:45,520 INFO L168 Benchmark]: RCFGBuilder took 523.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-11-20 06:49:45,521 INFO L168 Benchmark]: TraceAbstraction took 603.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-20 06:49:45,521 INFO L168 Benchmark]: Witness Printer took 6.43 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. [2019-11-20 06:49:45,532 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 462.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.85 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.22 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 523.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 603.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.43 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: 142]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 141, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 62, overapproximation of someUnaryFLOAToperation at line 137, overapproximation of someBinaryArithmeticFLOAToperation at line 65. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L137] float x = -0.0f; [L54] float w, s1, s2, z; [L55] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L58] ieee_float_shape_type gf_u; [L59] gf_u.value = (x) [L60] EXPR gf_u.word [L60] (hx) = gf_u.word [L62] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] COND TRUE ix >= 0x50800000 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L64] COND TRUE ((ix) > 0x7f800000L) [L65] return x + x; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L138] float res = atan_float(x); [L141] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L141] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L142] __VERIFIER_error() VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s 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 0.1.24-678e011 [2019-11-20 06:49:47,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:49:47,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:49:47,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-20 06:49:47,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:49:47,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:49:47,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:49:47,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:49:47,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:49:47,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:49:47,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:49:47,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:49:47,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:49:47,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:49:47,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:49:47,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:49:47,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-20 06:49:47,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:49:47,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:49:47,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:49:47,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:49:47,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:49:47,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:49:47,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:49:47,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:49:47,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:49:47,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:49:47,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:49:47,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 06:49:47,834 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:49:47,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:49:47,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:49:47,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:49:47,837 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 06:49:47,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:49:47,838 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 06:49:47,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 06:49:47,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:49:47,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 06:49:47,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 06:49:47,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 06:49:47,840 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 06:49:47,840 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 06:49:47,840 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 06:49:47,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 06:49:47,841 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:49:47,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 06:49:47,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:49:47,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 06:49:47,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 06:49:47,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 06:49:47,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:49:47,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:49:47,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 06:49:47,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 06:49:47,844 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 06:49:47,844 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 06:49:47,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 06:49:47,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 06:49:47,845 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_e206703a-add4-4a7a-9d1c-f38dac355ba8/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 -> fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 [2019-11-20 06:49:48,206 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:49:48,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:49:48,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:49:48,237 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:49:48,237 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:49:48,239 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-20 06:49:48,311 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/data/4c4fe2518/4042c9f8bd3241d08325d0270860fb61/FLAG340eb2abd [2019-11-20 06:49:48,790 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:49:48,791 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-20 06:49:48,804 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/data/4c4fe2518/4042c9f8bd3241d08325d0270860fb61/FLAG340eb2abd [2019-11-20 06:49:49,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/data/4c4fe2518/4042c9f8bd3241d08325d0270860fb61 [2019-11-20 06:49:49,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:49:49,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 06:49:49,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:49:49,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:49:49,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:49:49,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:49:49" (1/1) ... [2019-11-20 06:49:49,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436f853b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49, skipping insertion in model container [2019-11-20 06:49:49,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:49:49" (1/1) ... [2019-11-20 06:49:49,146 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:49:49,170 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:49:49,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:49:49,421 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:49:49,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:49:49,565 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:49:49,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49 WrapperNode [2019-11-20 06:49:49,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:49:49,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 06:49:49,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 06:49:49,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 06:49:49,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49" (1/1) ... [2019-11-20 06:49:49,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49" (1/1) ... [2019-11-20 06:49:49,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 06:49:49,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:49:49,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:49:49,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:49:49,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49" (1/1) ... [2019-11-20 06:49:49,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49" (1/1) ... [2019-11-20 06:49:49,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49" (1/1) ... [2019-11-20 06:49:49,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49" (1/1) ... [2019-11-20 06:49:49,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49" (1/1) ... [2019-11-20 06:49:49,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49" (1/1) ... [2019-11-20 06:49:49,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49" (1/1) ... [2019-11-20 06:49:49,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:49:49,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:49:49,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:49:49,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:49:49,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/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 [2019-11-20 06:49:49,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-20 06:49:49,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 06:49:49,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 06:49:49,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 06:49:49,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:49:49,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:49:49,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 06:49:49,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 06:49:49,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 06:49:57,842 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:49:57,842 INFO L285 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-20 06:49:57,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:49:57 BoogieIcfgContainer [2019-11-20 06:49:57,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:49:57,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 06:49:57,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 06:49:57,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 06:49:57,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:49:49" (1/3) ... [2019-11-20 06:49:57,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a1dc26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:49:57, skipping insertion in model container [2019-11-20 06:49:57,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:49:49" (2/3) ... [2019-11-20 06:49:57,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a1dc26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:49:57, skipping insertion in model container [2019-11-20 06:49:57,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:49:57" (3/3) ... [2019-11-20 06:49:57,854 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2019-11-20 06:49:57,865 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 06:49:57,872 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 06:49:57,882 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 06:49:57,904 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 06:49:57,904 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 06:49:57,905 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 06:49:57,905 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 06:49:57,905 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 06:49:57,905 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 06:49:57,905 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 06:49:57,905 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 06:49:57,920 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-20 06:49:57,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 06:49:57,927 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:49:57,927 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:49:57,928 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:49:57,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:49:57,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2019-11-20 06:49:57,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:49:57,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479238446] [2019-11-20 06:49:57,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/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 [2019-11-20 06:49:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:49:58,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 06:49:58,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:49:58,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:49:58,207 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:49:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:49:58,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479238446] [2019-11-20 06:49:58,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:49:58,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 06:49:58,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193370405] [2019-11-20 06:49:58,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 06:49:58,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:49:58,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 06:49:58,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 06:49:58,234 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-20 06:49:58,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:49:58,255 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-20 06:49:58,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 06:49:58,256 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 06:49:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:49:58,270 INFO L225 Difference]: With dead ends: 72 [2019-11-20 06:49:58,270 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 06:49:58,274 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 06:49:58,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 06:49:58,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-20 06:49:58,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 06:49:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-20 06:49:58,315 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2019-11-20 06:49:58,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:49:58,316 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-20 06:49:58,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 06:49:58,316 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-20 06:49:58,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 06:49:58,317 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:49:58,317 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:49:58,532 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 06:49:58,533 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:49:58,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:49:58,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2019-11-20 06:49:58,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:49:58,534 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79700820] [2019-11-20 06:49:58,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/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 [2019-11-20 06:49:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:49:58,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 06:49:58,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:49:58,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:49:58,817 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:49:58,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:49:58,910 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79700820] [2019-11-20 06:49:58,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:49:58,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 06:49:58,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640542063] [2019-11-20 06:49:58,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 06:49:58,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:49:58,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 06:49:58,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 06:49:58,914 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2019-11-20 06:50:03,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:50:03,169 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2019-11-20 06:50:03,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 06:50:03,171 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-20 06:50:03,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:50:03,172 INFO L225 Difference]: With dead ends: 57 [2019-11-20 06:50:03,172 INFO L226 Difference]: Without dead ends: 32 [2019-11-20 06:50:03,174 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 06:50:03,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-20 06:50:03,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-11-20 06:50:03,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 06:50:03,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-20 06:50:03,179 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2019-11-20 06:50:03,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:50:03,180 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-20 06:50:03,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 06:50:03,180 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-20 06:50:03,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 06:50:03,181 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:50:03,182 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:50:03,396 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 06:50:03,397 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:50:03,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:50:03,397 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2019-11-20 06:50:03,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:50:03,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374151509] [2019-11-20 06:50:03,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/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 [2019-11-20 06:50:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:50:03,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 06:50:03,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:50:03,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:50:03,664 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:50:03,666 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:50:03,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:50:03,739 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374151509] [2019-11-20 06:50:03,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:50:03,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-20 06:50:03,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935016314] [2019-11-20 06:50:03,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 06:50:03,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:50:03,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 06:50:03,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-20 06:50:03,741 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-11-20 06:50:07,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:50:07,977 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-20 06:50:07,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 06:50:07,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-20 06:50:07,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:50:07,982 INFO L225 Difference]: With dead ends: 35 [2019-11-20 06:50:07,983 INFO L226 Difference]: Without dead ends: 32 [2019-11-20 06:50:07,983 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 06:50:07,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-20 06:50:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-11-20 06:50:07,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 06:50:07,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-20 06:50:07,989 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-11-20 06:50:07,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:50:07,989 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-20 06:50:07,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 06:50:07,990 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-20 06:50:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 06:50:07,991 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:50:07,991 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:50:08,191 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 06:50:08,192 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:50:08,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:50:08,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2019-11-20 06:50:08,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:50:08,193 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844642092] [2019-11-20 06:50:08,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-20 06:50:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:50:09,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 06:50:09,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:50:09,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:50:09,588 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:50:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:50:09,972 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844642092] [2019-11-20 06:50:09,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:50:09,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-20 06:50:09,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890223131] [2019-11-20 06:50:09,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 06:50:09,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:50:09,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 06:50:09,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 06:50:09,974 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-11-20 06:50:10,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:50:10,079 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-20 06:50:10,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 06:50:10,084 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-20 06:50:10,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:50:10,085 INFO L225 Difference]: With dead ends: 32 [2019-11-20 06:50:10,085 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 06:50:10,086 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 06:50:10,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 06:50:10,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 06:50:10,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 06:50:10,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-20 06:50:10,090 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-20 06:50:10,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:50:10,091 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-20 06:50:10,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 06:50:10,091 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-20 06:50:10,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 06:50:10,092 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:50:10,092 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:50:10,302 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 06:50:10,303 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:50:10,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:50:10,303 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2019-11-20 06:50:10,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:50:10,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993950996] [2019-11-20 06:50:10,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-20 06:50:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:50:10,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 06:50:10,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:50:10,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:50:10,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:50:10,646 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:50:10,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:50:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:50:10,888 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993950996] [2019-11-20 06:50:10,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:50:10,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-20 06:50:10,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753116850] [2019-11-20 06:50:10,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 06:50:10,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:50:10,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 06:50:10,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-20 06:50:10,891 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-11-20 06:50:11,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:50:11,181 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-20 06:50:11,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 06:50:11,182 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-11-20 06:50:11,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:50:11,183 INFO L225 Difference]: With dead ends: 18 [2019-11-20 06:50:11,183 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 06:50:11,183 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-20 06:50:11,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 06:50:11,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 06:50:11,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 06:50:11,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 06:50:11,185 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-20 06:50:11,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:50:11,185 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 06:50:11,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 06:50:11,185 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 06:50:11,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 06:50:11,386 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-20 06:50:11,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 06:50:11,659 INFO L440 ceAbstractionStarter]: At program point L126(lines 117 127) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_atan_float_#res| .cse0) (= ULTIMATE.start_atan_float_~x .cse0) |ULTIMATE.start_main_#t~short29| (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_main_~res~0 .cse0) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0))) [2019-11-20 06:50:11,659 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 06:50:11,659 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 06:50:11,660 INFO L444 ceAbstractionStarter]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2019-11-20 06:50:11,660 INFO L440 ceAbstractionStarter]: At program point L120-2(lines 120 124) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_atan_float_#res| .cse0) (= ULTIMATE.start_atan_float_~x .cse0) |ULTIMATE.start_main_#t~short29| (= ULTIMATE.start_main_~res~0 .cse0) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ULTIMATE.start___signbit_float_~x .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0))) [2019-11-20 06:50:11,660 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-11-20 06:50:11,660 INFO L444 ceAbstractionStarter]: For program point L120-3(lines 120 124) no Hoare annotation was computed. [2019-11-20 06:50:11,660 INFO L444 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2019-11-20 06:50:11,661 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2019-11-20 06:50:11,661 INFO L444 ceAbstractionStarter]: For program point L79(lines 79 95) no Hoare annotation was computed. [2019-11-20 06:50:11,661 INFO L444 ceAbstractionStarter]: For program point L71(lines 71 96) no Hoare annotation was computed. [2019-11-20 06:50:11,661 INFO L444 ceAbstractionStarter]: For program point L63(lines 63 70) no Hoare annotation was computed. [2019-11-20 06:50:11,661 INFO L444 ceAbstractionStarter]: For program point L88(lines 88 94) no Hoare annotation was computed. [2019-11-20 06:50:11,661 INFO L444 ceAbstractionStarter]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2019-11-20 06:50:11,662 INFO L447 ceAbstractionStarter]: At program point L146(lines 129 147) the Hoare annotation is: true [2019-11-20 06:50:11,662 INFO L444 ceAbstractionStarter]: For program point L113(line 113) no Hoare annotation was computed. [2019-11-20 06:50:11,662 INFO L444 ceAbstractionStarter]: For program point L80(lines 80 86) no Hoare annotation was computed. [2019-11-20 06:50:11,662 INFO L444 ceAbstractionStarter]: For program point L113-2(line 113) no Hoare annotation was computed. [2019-11-20 06:50:11,662 INFO L440 ceAbstractionStarter]: At program point L113-3(lines 53 115) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_atan_float_#res| .cse0) (= ULTIMATE.start_atan_float_~x .cse0) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0))) [2019-11-20 06:50:11,663 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 75) no Hoare annotation was computed. [2019-11-20 06:50:11,663 INFO L444 ceAbstractionStarter]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2019-11-20 06:50:11,663 INFO L444 ceAbstractionStarter]: For program point L64(lines 64 65) no Hoare annotation was computed. [2019-11-20 06:50:11,663 INFO L444 ceAbstractionStarter]: For program point L73(lines 73 74) no Hoare annotation was computed. [2019-11-20 06:50:11,663 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 06:50:11,663 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2019-11-20 06:50:11,664 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2019-11-20 06:50:11,664 INFO L440 ceAbstractionStarter]: At program point L57-2(lines 57 61) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (fp.neg (_ +zero 8 24))) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) [2019-11-20 06:50:11,664 INFO L444 ceAbstractionStarter]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2019-11-20 06:50:11,664 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-20 06:50:11,664 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: false [2019-11-20 06:50:11,665 INFO L444 ceAbstractionStarter]: For program point L66(lines 66 69) no Hoare annotation was computed. [2019-11-20 06:50:11,665 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 06:50:11,665 INFO L444 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2019-11-20 06:50:11,665 INFO L444 ceAbstractionStarter]: For program point L141-2(lines 141 144) no Hoare annotation was computed. [2019-11-20 06:50:11,665 INFO L440 ceAbstractionStarter]: At program point L26(lines 14 27) the Hoare annotation is: false [2019-11-20 06:50:11,666 INFO L444 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-20 06:50:11,666 INFO L444 ceAbstractionStarter]: For program point L109(lines 109 114) no Hoare annotation was computed. [2019-11-20 06:50:11,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,705 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,705 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,705 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,706 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,712 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,712 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,714 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,714 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,715 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,715 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,716 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,716 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,716 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,717 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,720 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,721 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,721 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,721 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,722 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,723 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,726 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,727 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:50:11 BoogieIcfgContainer [2019-11-20 06:50:11,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 06:50:11,734 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 06:50:11,734 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 06:50:11,734 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 06:50:11,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:49:57" (3/4) ... [2019-11-20 06:50:11,738 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 06:50:11,751 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-20 06:50:11,751 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 06:50:11,752 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 06:50:11,777 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan [2019-11-20 06:50:11,778 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan [2019-11-20 06:50:11,779 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan [2019-11-20 06:50:11,830 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e206703a-add4-4a7a-9d1c-f38dac355ba8/bin/uautomizer/witness.graphml [2019-11-20 06:50:11,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 06:50:11,836 INFO L168 Benchmark]: Toolchain (without parser) took 22708.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 961.8 MB in the beginning and 876.9 MB in the end (delta: 84.9 MB). Peak memory consumption was 229.1 MB. Max. memory is 11.5 GB. [2019-11-20 06:50:11,836 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:50:11,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-20 06:50:11,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.48 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-20 06:50:11,838 INFO L168 Benchmark]: Boogie Preprocessor took 51.10 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. [2019-11-20 06:50:11,838 INFO L168 Benchmark]: RCFGBuilder took 8162.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-11-20 06:50:11,838 INFO L168 Benchmark]: TraceAbstraction took 13889.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 883.4 MB in the end (delta: 204.6 MB). Peak memory consumption was 204.6 MB. Max. memory is 11.5 GB. [2019-11-20 06:50:11,839 INFO L168 Benchmark]: Witness Printer took 100.20 ms. Allocated memory is still 1.2 GB. Free memory was 883.4 MB in the beginning and 876.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 06:50:11,841 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 437.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.48 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.10 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 8162.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13889.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 883.4 MB in the end (delta: 204.6 MB). Peak memory consumption was 204.6 MB. Max. memory is 11.5 GB. * Witness Printer took 100.20 ms. Allocated memory is still 1.2 GB. Free memory was 883.4 MB in the beginning and 876.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: 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: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant [2019-11-20 06:50:11,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 57]: Loop Invariant [2019-11-20 06:50:11,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant [2019-11-20 06:50:11,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 117]: Loop Invariant [2019-11-20 06:50:11,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,865 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 06:50:11,865 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 13.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 111 SDtfs, 161 SDslu, 202 SDs, 0 SdLazy, 85 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 124 HoareAnnotationTreeSize, 7 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 12 QuantifiedInterpolants, 9349 SizeOfPredicates, 27 NumberOfNonLiveVariables, 448 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...