./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 712005727f62c46a009e5aa995b5d1c386dc6cd1 ................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 712005727f62c46a009e5aa995b5d1c386dc6cd1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:41:02,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:41:02,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:41:02,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:41:02,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:41:02,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:41:02,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:41:02,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:41:02,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:41:02,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:41:02,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:41:02,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:41:02,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:41:02,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:41:02,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:41:02,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:41:02,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:41:02,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:41:02,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:41:02,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:41:02,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:41:02,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:41:02,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:41:02,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:41:02,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:41:02,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:41:02,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:41:02,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:41:02,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:41:03,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:41:03,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:41:03,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:41:03,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:41:03,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:41:03,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:41:03,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:41:03,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:41:03,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:41:03,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:41:03,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:41:03,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:41:03,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:41:03,045 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:41:03,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:41:03,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:41:03,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:41:03,048 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:41:03,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:41:03,048 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:41:03,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:41:03,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:41:03,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:41:03,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:41:03,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:41:03,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:41:03,050 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:41:03,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:41:03,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:41:03,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:41:03,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:41:03,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:41:03,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:41:03,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:41:03,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:41:03,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:41:03,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:41:03,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:41:03,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:41:03,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:41:03,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:41:03,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:41:03,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2020-11-30 00:41:03,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:41:03,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:41:03,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:41:03,413 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:41:03,415 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:41:03,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-11-30 00:41:03,497 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/data/a8ad03357/e3c58c07d34748729830c715c373944c/FLAGf0cc28265 [2020-11-30 00:41:04,193 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:41:04,194 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-11-30 00:41:04,212 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/data/a8ad03357/e3c58c07d34748729830c715c373944c/FLAGf0cc28265 [2020-11-30 00:41:04,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/data/a8ad03357/e3c58c07d34748729830c715c373944c [2020-11-30 00:41:04,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:41:04,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:41:04,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:41:04,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:41:04,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:41:04,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:41:04" (1/1) ... [2020-11-30 00:41:04,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de11e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04, skipping insertion in model container [2020-11-30 00:41:04,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:41:04" (1/1) ... [2020-11-30 00:41:04,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:41:04,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:41:04,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:41:04,855 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:41:04,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:41:04,923 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:41:04,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04 WrapperNode [2020-11-30 00:41:04,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:41:04,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:41:04,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:41:04,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:41:04,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04" (1/1) ... [2020-11-30 00:41:04,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04" (1/1) ... [2020-11-30 00:41:04,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:41:04,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:41:04,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:41:04,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:41:04,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04" (1/1) ... [2020-11-30 00:41:04,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04" (1/1) ... [2020-11-30 00:41:04,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04" (1/1) ... [2020-11-30 00:41:04,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04" (1/1) ... [2020-11-30 00:41:05,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04" (1/1) ... [2020-11-30 00:41:05,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04" (1/1) ... [2020-11-30 00:41:05,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04" (1/1) ... [2020-11-30 00:41:05,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:41:05,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:41:05,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:41:05,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:41:05,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:41:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:41:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:41:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:41:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 00:41:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 00:41:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:41:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:41:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:41:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-30 00:41:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:41:05,859 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:41:05,859 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-30 00:41:05,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:05 BoogieIcfgContainer [2020-11-30 00:41:05,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:41:05,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:41:05,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:41:05,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:41:05,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:41:04" (1/3) ... [2020-11-30 00:41:05,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230b2658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:41:05, skipping insertion in model container [2020-11-30 00:41:05,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:04" (2/3) ... [2020-11-30 00:41:05,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230b2658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:41:05, skipping insertion in model container [2020-11-30 00:41:05,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:05" (3/3) ... [2020-11-30 00:41:05,871 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2020-11-30 00:41:05,893 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:41:05,904 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:41:05,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:41:05,975 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:41:05,975 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:41:05,975 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:41:05,976 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:41:05,976 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:41:05,976 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:41:05,976 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:41:05,977 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:41:05,993 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-11-30 00:41:06,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:41:06,004 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:41:06,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:41:06,006 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:41:06,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:41:06,017 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2020-11-30 00:41:06,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:41:06,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294838185] [2020-11-30 00:41:06,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:41:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:41:06,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:06,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294838185] [2020-11-30 00:41:06,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:41:06,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:41:06,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035792318] [2020-11-30 00:41:06,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:41:06,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:41:06,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:41:06,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:41:06,306 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-11-30 00:41:06,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:41:06,344 INFO L93 Difference]: Finished difference Result 71 states and 113 transitions. [2020-11-30 00:41:06,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:41:06,346 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 00:41:06,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:41:06,368 INFO L225 Difference]: With dead ends: 71 [2020-11-30 00:41:06,369 INFO L226 Difference]: Without dead ends: 33 [2020-11-30 00:41:06,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:41:06,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-30 00:41:06,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-30 00:41:06,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-30 00:41:06,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2020-11-30 00:41:06,429 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2020-11-30 00:41:06,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:41:06,430 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2020-11-30 00:41:06,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:41:06,430 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2020-11-30 00:41:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:41:06,432 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:41:06,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:41:06,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:41:06,433 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:41:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:41:06,437 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2020-11-30 00:41:06,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:41:06,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138361440] [2020-11-30 00:41:06,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:41:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:41:06,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:41:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:41:06,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:41:06,704 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:41:06,705 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:41:06,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:41:06,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:41:06 BoogieIcfgContainer [2020-11-30 00:41:06,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:41:06,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:41:06,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:41:06,776 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:41:06,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:05" (3/4) ... [2020-11-30 00:41:06,782 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:41:06,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:41:06,788 INFO L168 Benchmark]: Toolchain (without parser) took 2272.47 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 60.9 MB in the beginning and 65.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:06,789 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 47.2 MB in the beginning and 47.2 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:41:06,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.13 ms. Allocated memory is still 90.2 MB. Free memory was 60.6 MB in the beginning and 66.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:06,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.66 ms. Allocated memory is still 90.2 MB. Free memory was 66.2 MB in the beginning and 64.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:06,792 INFO L168 Benchmark]: Boogie Preprocessor took 52.86 ms. Allocated memory is still 90.2 MB. Free memory was 64.2 MB in the beginning and 62.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:06,794 INFO L168 Benchmark]: RCFGBuilder took 826.91 ms. Allocated memory is still 90.2 MB. Free memory was 62.5 MB in the beginning and 39.0 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:06,795 INFO L168 Benchmark]: TraceAbstraction took 911.44 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 38.6 MB in the beginning and 66.3 MB in the end (delta: -27.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:41:06,797 INFO L168 Benchmark]: Witness Printer took 7.38 ms. Allocated memory is still 111.1 MB. Free memory was 66.3 MB in the beginning and 65.8 MB in the end (delta: 546.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:41:06,811 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 47.2 MB in the beginning and 47.2 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 408.13 ms. Allocated memory is still 90.2 MB. Free memory was 60.6 MB in the beginning and 66.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.66 ms. Allocated memory is still 90.2 MB. Free memory was 66.2 MB in the beginning and 64.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.86 ms. Allocated memory is still 90.2 MB. Free memory was 64.2 MB in the beginning and 62.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 826.91 ms. Allocated memory is still 90.2 MB. Free memory was 62.5 MB in the beginning and 39.0 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 911.44 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 38.6 MB in the beginning and 66.3 MB in the end (delta: -27.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.38 ms. Allocated memory is still 111.1 MB. Free memory was 66.3 MB in the beginning and 65.8 MB in the end (delta: 546.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 123, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 48, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L119] float x = -0.0f; [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] float res = __ieee754_expf(x); [L123] COND TRUE res != 1.0f VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L3] __assert_fail("0", "float_req_bl_0832b.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:41:09,822 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-11-30 00:41:09,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:41:09,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:41:09,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:41:09,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:41:09,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:41:09,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:41:09,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:41:09,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:41:09,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:41:09,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:41:09,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:41:09,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:41:10,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:41:10,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:41:10,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:41:10,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:41:10,027 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:41:10,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:41:10,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:41:10,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:41:10,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:41:10,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:41:10,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:41:10,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:41:10,032 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:41:10,032 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:41:10,033 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:41:10,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:41:10,033 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:41:10,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:41:10,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:41:10,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:41:10,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:41:10,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:41:10,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:41:10,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:41:10,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:41:10,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:41:10,036 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:41:10,036 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:41:10,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:41:10,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:41:10,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:41:10,037 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2020-11-30 00:41:10,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:41:10,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:41:10,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:41:10,594 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:41:10,595 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:41:10,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-11-30 00:41:10,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/data/e92758446/be8e5db3788344b9b84276b834261927/FLAG94ab93430 [2020-11-30 00:41:11,448 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:41:11,448 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-11-30 00:41:11,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/data/e92758446/be8e5db3788344b9b84276b834261927/FLAG94ab93430 [2020-11-30 00:41:11,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/data/e92758446/be8e5db3788344b9b84276b834261927 [2020-11-30 00:41:11,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:41:11,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:41:11,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:41:11,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:41:11,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:41:11,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:41:11" (1/1) ... [2020-11-30 00:41:11,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e341115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:11, skipping insertion in model container [2020-11-30 00:41:11,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:41:11" (1/1) ... [2020-11-30 00:41:11,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:41:11,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:41:12,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:41:12,053 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:41:12,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:41:12,247 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:41:12,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12 WrapperNode [2020-11-30 00:41:12,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:41:12,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:41:12,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:41:12,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:41:12,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12" (1/1) ... [2020-11-30 00:41:12,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12" (1/1) ... [2020-11-30 00:41:12,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:41:12,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:41:12,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:41:12,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:41:12,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12" (1/1) ... [2020-11-30 00:41:12,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12" (1/1) ... [2020-11-30 00:41:12,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12" (1/1) ... [2020-11-30 00:41:12,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12" (1/1) ... [2020-11-30 00:41:12,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12" (1/1) ... [2020-11-30 00:41:12,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12" (1/1) ... [2020-11-30 00:41:12,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12" (1/1) ... [2020-11-30 00:41:12,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:41:12,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:41:12,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:41:12,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:41:12,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:41:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-30 00:41:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:41:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:41:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 00:41:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:41:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:41:12,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:41:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 00:41:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:41:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:41:22,444 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:41:22,445 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-30 00:41:22,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:22 BoogieIcfgContainer [2020-11-30 00:41:22,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:41:22,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:41:22,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:41:22,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:41:22,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:41:11" (1/3) ... [2020-11-30 00:41:22,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c939e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:41:22, skipping insertion in model container [2020-11-30 00:41:22,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:12" (2/3) ... [2020-11-30 00:41:22,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c939e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:41:22, skipping insertion in model container [2020-11-30 00:41:22,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:22" (3/3) ... [2020-11-30 00:41:22,458 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2020-11-30 00:41:22,472 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:41:22,478 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:41:22,493 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:41:22,524 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:41:22,525 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:41:22,525 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:41:22,525 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:41:22,525 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:41:22,525 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:41:22,526 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:41:22,526 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:41:22,542 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-11-30 00:41:22,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:41:22,549 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:41:22,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:41:22,550 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:41:22,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:41:22,558 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2020-11-30 00:41:22,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:41:22,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689341487] [2020-11-30 00:41:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:41:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:41:23,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 00:41:23,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:41:23,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:23,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:41:23,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:23,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689341487] [2020-11-30 00:41:23,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:41:23,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:41:23,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279339205] [2020-11-30 00:41:23,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:41:23,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:41:23,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:41:23,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:41:23,343 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-11-30 00:41:23,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:41:23,367 INFO L93 Difference]: Finished difference Result 71 states and 113 transitions. [2020-11-30 00:41:23,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:41:23,369 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 00:41:23,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:41:23,381 INFO L225 Difference]: With dead ends: 71 [2020-11-30 00:41:23,381 INFO L226 Difference]: Without dead ends: 33 [2020-11-30 00:41:23,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:41:23,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-30 00:41:23,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-30 00:41:23,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-30 00:41:23,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2020-11-30 00:41:23,427 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2020-11-30 00:41:23,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:41:23,428 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2020-11-30 00:41:23,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:41:23,428 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2020-11-30 00:41:23,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:41:23,429 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:41:23,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:41:23,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:41:23,645 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:41:23,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:41:23,646 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2020-11-30 00:41:23,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:41:23,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275348859] [2020-11-30 00:41:23,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 00:41:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:41:24,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:41:24,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:41:24,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:24,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:41:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:24,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275348859] [2020-11-30 00:41:24,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:41:24,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 00:41:24,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285067839] [2020-11-30 00:41:24,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:41:24,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:41:24,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:41:24,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:41:24,668 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2020-11-30 00:41:35,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:41:35,830 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2020-11-30 00:41:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:41:35,964 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-11-30 00:41:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:41:35,965 INFO L225 Difference]: With dead ends: 54 [2020-11-30 00:41:35,965 INFO L226 Difference]: Without dead ends: 33 [2020-11-30 00:41:35,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:41:35,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-30 00:41:35,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2020-11-30 00:41:35,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 00:41:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-11-30 00:41:35,974 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2020-11-30 00:41:35,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:41:35,974 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-11-30 00:41:35,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:41:35,975 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-11-30 00:41:35,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:41:35,976 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:41:35,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:41:36,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:41:36,193 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:41:36,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:41:36,194 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2020-11-30 00:41:36,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:41:36,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99861587] [2020-11-30 00:41:36,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 00:41:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:41:36,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:41:36,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:41:37,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:37,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:41:37,976 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 00:41:38,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:38,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99861587] [2020-11-30 00:41:38,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:41:38,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-30 00:41:38,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47028883] [2020-11-30 00:41:38,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:41:38,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:41:38,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:41:38,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:41:38,166 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 10 states. [2020-11-30 00:41:51,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:41:51,229 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-30 00:41:51,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:41:51,229 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-30 00:41:51,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:41:51,230 INFO L225 Difference]: With dead ends: 33 [2020-11-30 00:41:51,230 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 00:41:51,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-30 00:41:51,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 00:41:51,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-30 00:41:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 00:41:51,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-11-30 00:41:51,236 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2020-11-30 00:41:51,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:41:51,237 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-11-30 00:41:51,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:41:51,237 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-30 00:41:51,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:41:51,238 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:41:51,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:41:51,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:41:51,439 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:41:51,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:41:51,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2020-11-30 00:41:51,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:41:51,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874077099] [2020-11-30 00:41:51,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/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 [2020-11-30 00:41:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:41:53,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:41:53,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:41:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:53,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:41:53,615 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-30 00:41:53,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:53,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874077099] [2020-11-30 00:41:53,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:41:53,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 00:41:53,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204625810] [2020-11-30 00:41:53,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:41:53,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:41:53,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:41:53,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:41:53,783 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-11-30 00:41:53,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:41:53,963 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-11-30 00:41:53,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:41:53,965 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-30 00:41:53,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:41:53,965 INFO L225 Difference]: With dead ends: 29 [2020-11-30 00:41:53,966 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:41:53,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:41:53,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:41:53,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:41:53,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:41:53,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:41:53,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-30 00:41:53,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:41:53,967 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:41:53,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:41:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:41:53,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:41:54,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 00:41:54,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:41:54,306 INFO L274 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2020-11-30 00:41:54,306 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 00:41:54,306 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 00:41:54,306 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:41:54,306 INFO L274 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-11-30 00:41:54,307 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:41:54,307 INFO L274 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2020-11-30 00:41:54,307 INFO L274 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2020-11-30 00:41:54,307 INFO L274 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-11-30 00:41:54,307 INFO L270 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2020-11-30 00:41:54,307 INFO L277 CegarLoopResult]: At program point L128(lines 113 129) the Hoare annotation is: true [2020-11-30 00:41:54,307 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-11-30 00:41:54,307 INFO L274 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-11-30 00:41:54,308 INFO L274 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-11-30 00:41:54,308 INFO L274 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2020-11-30 00:41:54,308 INFO L274 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2020-11-30 00:41:54,308 INFO L274 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2020-11-30 00:41:54,308 INFO L274 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2020-11-30 00:41:54,308 INFO L274 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2020-11-30 00:41:54,308 INFO L274 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2020-11-30 00:41:54,308 INFO L274 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2020-11-30 00:41:54,308 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:41:54,309 INFO L274 CegarLoopResult]: For program point L123(lines 123 126) no Hoare annotation was computed. [2020-11-30 00:41:54,309 INFO L274 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2020-11-30 00:41:54,309 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:41:54,309 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-11-30 00:41:54,309 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-11-30 00:41:54,309 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:41:54,310 INFO L274 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2020-11-30 00:41:54,310 INFO L274 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2020-11-30 00:41:54,310 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2020-11-30 00:41:54,310 INFO L274 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2020-11-30 00:41:54,310 INFO L274 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-11-30 00:41:54,311 INFO L270 CegarLoopResult]: At program point L109(lines 38 111) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_expf_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 .cse1) (= (fp.add currentRoundingMode .cse1 .cse0) |ULTIMATE.start___ieee754_expf_#res|))) [2020-11-30 00:41:54,311 INFO L274 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2020-11-30 00:41:54,311 INFO L270 CegarLoopResult]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_expf_~x (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ~huge_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-30 00:41:54,312 INFO L274 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2020-11-30 00:41:54,327 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:41:54,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,336 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:41:54,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,340 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:41:54,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,349 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:41:54,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,352 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:41:54 BoogieIcfgContainer [2020-11-30 00:41:54,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:41:54,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:41:54,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:41:54,356 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:41:54,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:22" (3/4) ... [2020-11-30 00:41:54,361 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:41:54,382 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-30 00:41:54,382 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:41:54,383 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:41:54,383 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:41:54,417 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) == \result [2020-11-30 00:41:54,506 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dea61d4e-fc47-4867-85db-19a0faa9f441/bin/uautomizer/witness.graphml [2020-11-30 00:41:54,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:41:54,508 INFO L168 Benchmark]: Toolchain (without parser) took 42739.23 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 41.2 MB in the beginning and 37.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:54,509 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 60.8 MB. Free memory is still 42.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:41:54,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.55 ms. Allocated memory is still 60.8 MB. Free memory was 40.9 MB in the beginning and 41.5 MB in the end (delta: -589.6 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:54,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.43 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 39.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:54,511 INFO L168 Benchmark]: Boogie Preprocessor took 90.75 ms. Allocated memory is still 60.8 MB. Free memory was 39.2 MB in the beginning and 37.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:54,512 INFO L168 Benchmark]: RCFGBuilder took 10010.63 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 37.2 MB in the beginning and 62.5 MB in the end (delta: -25.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:54,513 INFO L168 Benchmark]: TraceAbstraction took 31905.14 ms. Allocated memory is still 81.8 MB. Free memory was 62.0 MB in the beginning and 43.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:54,513 INFO L168 Benchmark]: Witness Printer took 150.95 ms. Allocated memory is still 81.8 MB. Free memory was 43.5 MB in the beginning and 37.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:54,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 60.8 MB. Free memory is still 42.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 478.55 ms. Allocated memory is still 60.8 MB. Free memory was 40.9 MB in the beginning and 41.5 MB in the end (delta: -589.6 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.43 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 39.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.75 ms. Allocated memory is still 60.8 MB. Free memory was 39.2 MB in the beginning and 37.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10010.63 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 37.2 MB in the beginning and 62.5 MB in the end (delta: -25.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31905.14 ms. Allocated memory is still 81.8 MB. Free memory was 62.0 MB in the beginning and 43.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Witness Printer took 150.95 ms. Allocated memory is still 81.8 MB. Free memory was 43.5 MB in the beginning and 37.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant [2020-11-30 00:41:54,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:41:54,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,538 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:41:54,539 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,539 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 43]: Loop Invariant [2020-11-30 00:41:54,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:41:54,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,543 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:41:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:41:54,545 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && huge_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 24.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 102 SDtfs, 91 SDslu, 191 SDs, 0 SdLazy, 68 SolverSat, 5 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 23.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.2s 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 51 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9890 SizeOfPredicates, 19 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...