./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.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_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f5b8c80e48870e4ca371ca121ab1eea2fc8dc5d ................................................................................................................................................................................................................................................................................................................................. 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_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f5b8c80e48870e4ca371ca121ab1eea2fc8dc5d ......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:07:36,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:37,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:37,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:37,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:37,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:37,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:37,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:37,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:37,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:37,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:37,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:37,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:37,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:37,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:37,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:37,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:37,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:37,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:37,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:37,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:37,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:37,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:37,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:37,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:37,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:37,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:37,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:37,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:37,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:37,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:37,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:37,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:37,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:37,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:37,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:37,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:37,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:37,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:37,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:37,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:37,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:07:37,135 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:37,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:37,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:37,136 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:37,136 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:37,137 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:37,137 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:07:37,137 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:37,137 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:37,138 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:07:37,138 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:07:37,138 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:37,138 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:07:37,139 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:07:37,139 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:07:37,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:37,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:37,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:07:37,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:37,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:37,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:07:37,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:37,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:07:37,141 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:07:37,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:37,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:07:37,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:37,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:07:37,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:37,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:37,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:37,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:37,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:37,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:37,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:07:37,144 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:07:37,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:07:37,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:07:37,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:37,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:37,145 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5b8c80e48870e4ca371ca121ab1eea2fc8dc5d [2020-11-22 13:07:37,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:37,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:37,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:37,414 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:37,415 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:37,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2020-11-22 13:07:37,491 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/data/f5de976f6/1570182ebb46429ea3f65ad7ac97d68b/FLAG8c6f56ed6 [2020-11-22 13:07:37,908 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:37,909 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2020-11-22 13:07:37,916 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/data/f5de976f6/1570182ebb46429ea3f65ad7ac97d68b/FLAG8c6f56ed6 [2020-11-22 13:07:38,307 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/data/f5de976f6/1570182ebb46429ea3f65ad7ac97d68b [2020-11-22 13:07:38,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:38,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:38,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:38,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:38,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:38,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659c8c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38, skipping insertion in model container [2020-11-22 13:07:38,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:38,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:38,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:38,588 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:07:38,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:38,654 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:07:38,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38 WrapperNode [2020-11-22 13:07:38,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:38,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:38,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:07:38,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:07:38,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:38,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:07:38,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:07:38,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:07:38,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:07:38,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:07:38,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:07:38,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:07:38,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/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 [2020-11-22 13:07:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:07:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:07:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 13:07:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:07:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 13:07:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:07:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:07:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 13:07:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:07:39,438 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:07:39,438 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-22 13:07:39,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:39 BoogieIcfgContainer [2020-11-22 13:07:39,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:07:39,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:07:39,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:07:39,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:07:39,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:07:38" (1/3) ... [2020-11-22 13:07:39,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d8383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:39, skipping insertion in model container [2020-11-22 13:07:39,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38" (2/3) ... [2020-11-22 13:07:39,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d8383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:39, skipping insertion in model container [2020-11-22 13:07:39,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:39" (3/3) ... [2020-11-22 13:07:39,447 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2020-11-22 13:07:39,457 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:07:39,463 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:07:39,474 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:07:39,527 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:07:39,527 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:07:39,527 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:07:39,528 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:07:39,528 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:07:39,528 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:07:39,528 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:07:39,528 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:07:39,539 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-11-22 13:07:39,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:07:39,545 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:39,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:39,546 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:39,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:39,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1151170609, now seen corresponding path program 1 times [2020-11-22 13:07:39,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:39,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968483544] [2020-11-22 13:07:39,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:39,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968483544] [2020-11-22 13:07:39,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:39,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:07:39,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096861272] [2020-11-22 13:07:39,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:07:39,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:39,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:07:39,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:07:39,740 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-11-22 13:07:39,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:39,754 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-11-22 13:07:39,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:07:39,758 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-22 13:07:39,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:39,766 INFO L225 Difference]: With dead ends: 43 [2020-11-22 13:07:39,767 INFO L226 Difference]: Without dead ends: 20 [2020-11-22 13:07:39,776 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 [2020-11-22 13:07:39,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-22 13:07:39,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-22 13:07:39,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-22 13:07:39,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2020-11-22 13:07:39,802 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 10 [2020-11-22 13:07:39,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:39,802 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-11-22 13:07:39,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:07:39,803 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2020-11-22 13:07:39,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 13:07:39,803 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:39,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:39,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:07:39,804 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:39,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:39,805 INFO L82 PathProgramCache]: Analyzing trace with hash -912026999, now seen corresponding path program 1 times [2020-11-22 13:07:39,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:39,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233527559] [2020-11-22 13:07:39,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:07:39,914 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:07:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:07:40,007 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:07:40,034 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:07:40,035 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:07:40,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:07:40,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:07:40 BoogieIcfgContainer [2020-11-22 13:07:40,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:07:40,101 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:07:40,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:07:40,102 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:07:40,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:39" (3/4) ... [2020-11-22 13:07:40,105 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:07:40,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:07:40,109 INFO L168 Benchmark]: Toolchain (without parser) took 1796.93 ms. Allocated memory is still 100.7 MB. Free memory was 67.8 MB in the beginning and 53.8 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:40,110 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 73.4 MB. Free memory was 48.2 MB in the beginning and 48.2 MB in the end (delta: 26.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:40,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.01 ms. Allocated memory is still 100.7 MB. Free memory was 67.6 MB in the beginning and 77.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:40,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.95 ms. Allocated memory is still 100.7 MB. Free memory was 77.2 MB in the beginning and 74.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:40,113 INFO L168 Benchmark]: Boogie Preprocessor took 33.87 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 73.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:40,115 INFO L168 Benchmark]: RCFGBuilder took 692.21 ms. Allocated memory is still 100.7 MB. Free memory was 73.5 MB in the beginning and 37.3 MB in the end (delta: 36.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:40,115 INFO L168 Benchmark]: TraceAbstraction took 658.80 ms. Allocated memory is still 100.7 MB. Free memory was 36.6 MB in the beginning and 54.3 MB in the end (delta: -17.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:40,116 INFO L168 Benchmark]: Witness Printer took 4.91 ms. Allocated memory is still 100.7 MB. Free memory is still 53.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:40,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 73.4 MB. Free memory was 48.2 MB in the beginning and 48.2 MB in the end (delta: 26.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 337.01 ms. Allocated memory is still 100.7 MB. Free memory was 67.6 MB in the beginning and 77.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.95 ms. Allocated memory is still 100.7 MB. Free memory was 77.2 MB in the beginning and 74.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.87 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 73.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 692.21 ms. Allocated memory is still 100.7 MB. Free memory was 73.5 MB in the beginning and 37.3 MB in the end (delta: 36.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 658.80 ms. Allocated memory is still 100.7 MB. Free memory was 36.6 MB in the beginning and 54.3 MB in the end (delta: -17.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.91 ms. Allocated memory is still 100.7 MB. Free memory is still 53.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 29, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L134] double x = 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L135] double res = __ieee754_log(x); [L21] __int32_t hx, lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L138] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_0910a.c", 3, "reach_error") VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 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=22occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:07:42,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:42,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:42,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:42,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:42,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:42,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:42,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:42,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:42,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:42,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:42,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:42,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:42,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:42,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:42,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:42,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:42,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:42,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:42,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:42,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:42,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:42,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:42,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:42,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:42,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:42,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:42,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:42,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:42,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:42,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:42,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:42,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:42,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:42,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:42,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:42,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:42,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:42,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:42,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:42,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:42,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:07:42,588 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:42,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:42,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:42,590 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:42,591 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:42,591 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:42,591 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:42,592 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:42,592 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:42,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:42,593 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:42,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:42,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:42,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:07:42,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:42,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:07:42,596 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:07:42,596 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:07:42,596 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:07:42,597 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:42,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:07:42,597 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:42,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:07:42,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:42,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:07:42,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:42,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:42,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:42,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:42,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:42,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:07:42,605 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:07:42,605 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:07:42,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:07:42,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:42,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:42,606 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_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5b8c80e48870e4ca371ca121ab1eea2fc8dc5d [2020-11-22 13:07:42,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:43,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:43,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:43,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:43,015 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:43,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2020-11-22 13:07:43,085 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/data/8b5c04684/1a13158ec3f2401d87743916880d51dc/FLAG687062835 [2020-11-22 13:07:43,631 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:43,631 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2020-11-22 13:07:43,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/data/8b5c04684/1a13158ec3f2401d87743916880d51dc/FLAG687062835 [2020-11-22 13:07:43,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/data/8b5c04684/1a13158ec3f2401d87743916880d51dc [2020-11-22 13:07:43,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:43,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:43,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:43,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:43,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:43,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:43" (1/1) ... [2020-11-22 13:07:43,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be3249e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43, skipping insertion in model container [2020-11-22 13:07:43,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:43" (1/1) ... [2020-11-22 13:07:43,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:44,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:44,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:44,181 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:07:44,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:44,288 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:07:44,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44 WrapperNode [2020-11-22 13:07:44,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:44,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:44,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:07:44,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:07:44,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44" (1/1) ... [2020-11-22 13:07:44,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44" (1/1) ... [2020-11-22 13:07:44,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:44,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:07:44,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:07:44,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:07:44,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44" (1/1) ... [2020-11-22 13:07:44,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44" (1/1) ... [2020-11-22 13:07:44,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44" (1/1) ... [2020-11-22 13:07:44,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44" (1/1) ... [2020-11-22 13:07:44,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44" (1/1) ... [2020-11-22 13:07:44,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44" (1/1) ... [2020-11-22 13:07:44,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44" (1/1) ... [2020-11-22 13:07:44,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:07:44,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:07:44,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:07:44,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:07:44,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/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 [2020-11-22 13:07:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-22 13:07:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-22 13:07:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:07:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:07:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 13:07:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:07:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:07:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 13:07:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:08:07,598 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:07,599 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-22 13:08:07,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:07 BoogieIcfgContainer [2020-11-22 13:08:07,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:07,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:07,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:07,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:07,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:07:43" (1/3) ... [2020-11-22 13:08:07,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a055f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:07, skipping insertion in model container [2020-11-22 13:08:07,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:44" (2/3) ... [2020-11-22 13:08:07,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a055f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:07, skipping insertion in model container [2020-11-22 13:08:07,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:07" (3/3) ... [2020-11-22 13:08:07,608 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2020-11-22 13:08:07,619 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:07,623 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:08:07,634 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:08:07,657 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:07,657 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:08:07,657 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:07,657 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:07,657 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:07,658 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:07,658 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:07,658 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:07,669 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-22 13:08:07,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 13:08:07,674 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:07,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:07,675 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:07,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:07,681 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-11-22 13:08:07,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:07,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664677380] [2020-11-22 13:08:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/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 [2020-11-22 13:08:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:08,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:08:08,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:08,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:08,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:08,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:08,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664677380] [2020-11-22 13:08:08,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:08,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:08:08,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370146221] [2020-11-22 13:08:08,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:08:08,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:08,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:08:08,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:08:08,719 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-22 13:08:08,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:08,737 INFO L93 Difference]: Finished difference Result 63 states and 101 transitions. [2020-11-22 13:08:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:08:08,738 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-22 13:08:08,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:08,747 INFO L225 Difference]: With dead ends: 63 [2020-11-22 13:08:08,747 INFO L226 Difference]: Without dead ends: 29 [2020-11-22 13:08:08,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:08:08,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-22 13:08:08,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-22 13:08:08,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-22 13:08:08,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-11-22 13:08:08,781 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-11-22 13:08:08,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:08,782 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-11-22 13:08:08,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:08:08,782 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-22 13:08:08,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-22 13:08:08,783 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:08,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:08,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:08:08,997 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:08,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:08,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-11-22 13:08:08,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:09,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824747708] [2020-11-22 13:08:09,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/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 [2020-11-22 13:08:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:10,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:11,427 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:11,545 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:08:11,546 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:08:11,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:08:11,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:11 BoogieIcfgContainer [2020-11-22 13:08:11,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:11,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:11,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:11,802 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:11,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:07" (3/4) ... [2020-11-22 13:08:11,804 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:08:11,868 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_75d59410-a632-4691-961e-bf1df2312aee/bin/utaipan/witness.graphml [2020-11-22 13:08:11,868 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:11,870 INFO L168 Benchmark]: Toolchain (without parser) took 27897.98 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 41.2 MB in the beginning and 37.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:11,871 INFO L168 Benchmark]: CDTParser took 0.20 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. [2020-11-22 13:08:11,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.98 ms. Allocated memory is still 60.8 MB. Free memory was 41.0 MB in the beginning and 41.3 MB in the end (delta: -297.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:11,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.75 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 39.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:11,872 INFO L168 Benchmark]: Boogie Preprocessor took 76.33 ms. Allocated memory is still 60.8 MB. Free memory was 39.2 MB in the beginning and 37.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:11,873 INFO L168 Benchmark]: RCFGBuilder took 23170.93 ms. Allocated memory is still 60.8 MB. Free memory was 37.1 MB in the beginning and 30.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:11,874 INFO L168 Benchmark]: TraceAbstraction took 4199.08 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 29.9 MB in the beginning and 41.0 MB in the end (delta: -11.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:11,874 INFO L168 Benchmark]: Witness Printer took 66.69 ms. Allocated memory is still 73.4 MB. Free memory was 41.0 MB in the beginning and 37.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:11,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 316.98 ms. Allocated memory is still 60.8 MB. Free memory was 41.0 MB in the beginning and 41.3 MB in the end (delta: -297.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.75 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 39.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.33 ms. Allocated memory is still 60.8 MB. Free memory was 39.2 MB in the beginning and 37.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 23170.93 ms. Allocated memory is still 60.8 MB. Free memory was 37.1 MB in the beginning and 30.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4199.08 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 29.9 MB in the beginning and 41.0 MB in the end (delta: -11.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB. * Witness Printer took 66.69 ms. Allocated memory is still 73.4 MB. Free memory was 41.0 MB in the beginning and 37.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L134] double x = 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L135] double res = __ieee754_log(x); [L21] __int32_t hx, lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L138] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_0910a.c", 3, "reach_error") VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 2.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 incorrect! Received shutdown request...