./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0834.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_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c -s /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/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 78ea4619176830aa2eaba3eb142f65766ef4226b .................................................................................................................................................................................................................................................................................................................................................. 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_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c -s /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/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 78ea4619176830aa2eaba3eb142f65766ef4226b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:56:18,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:18,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:18,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:18,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:18,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:18,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:18,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:18,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:18,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:18,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:18,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:18,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:18,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:18,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:18,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:18,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:18,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:18,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:18,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:18,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:18,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:18,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:18,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:18,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:18,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:18,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:18,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:18,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:18,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:18,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:18,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:18,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:18,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:18,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:18,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:18,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:18,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:18,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:18,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:18,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:18,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:56:18,215 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:18,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:18,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:18,216 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:18,217 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:18,217 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:18,217 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:56:18,218 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:18,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:18,218 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:56:18,219 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:56:18,219 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:18,220 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:56:18,220 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:56:18,220 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:56:18,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:18,221 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:56:18,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:56:18,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:56:18,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:18,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:56:18,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:18,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:56:18,224 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:18,224 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:56:18,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:56:18,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:18,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:56:18,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:18,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:18,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:18,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:18,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:18,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:18,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:56:18,226 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:56:18,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:56:18,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:56:18,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:18,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:18,227 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_59708510-2cc5-459c-a852-eb9dedf60ce8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ea4619176830aa2eaba3eb142f65766ef4226b [2020-11-22 12:56:18,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:18,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:18,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:18,475 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:18,476 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:18,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-11-22 12:56:18,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/data/4a5a73041/fc563f3c574642f2a24dcdd47e919d12/FLAGa8a349835 [2020-11-22 12:56:19,077 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:19,078 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-11-22 12:56:19,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/data/4a5a73041/fc563f3c574642f2a24dcdd47e919d12/FLAGa8a349835 [2020-11-22 12:56:19,550 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/data/4a5a73041/fc563f3c574642f2a24dcdd47e919d12 [2020-11-22 12:56:19,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:19,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:19,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:19,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:19,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:19,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:19" (1/1) ... [2020-11-22 12:56:19,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d82c153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19, skipping insertion in model container [2020-11-22 12:56:19,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:19" (1/1) ... [2020-11-22 12:56:19,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:19,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:19,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:19,867 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:56:19,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:19,928 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:56:19,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19 WrapperNode [2020-11-22 12:56:19,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:19,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:19,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:56:19,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:56:19,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19" (1/1) ... [2020-11-22 12:56:19,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19" (1/1) ... [2020-11-22 12:56:19,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:19,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:56:19,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:56:19,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:56:19,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19" (1/1) ... [2020-11-22 12:56:19,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19" (1/1) ... [2020-11-22 12:56:19,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19" (1/1) ... [2020-11-22 12:56:19,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19" (1/1) ... [2020-11-22 12:56:20,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19" (1/1) ... [2020-11-22 12:56:20,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19" (1/1) ... [2020-11-22 12:56:20,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19" (1/1) ... [2020-11-22 12:56:20,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:56:20,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:56:20,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:56:20,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:56:20,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/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 12:56:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:56:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:56:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 12:56:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 12:56:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 12:56:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:56:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:56:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 12:56:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-22 12:56:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:56:20,896 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:56:20,897 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-22 12:56:20,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:20 BoogieIcfgContainer [2020-11-22 12:56:20,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:56:20,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:56:20,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:56:20,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:56:20,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:56:19" (1/3) ... [2020-11-22 12:56:20,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513d8055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:20, skipping insertion in model container [2020-11-22 12:56:20,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:19" (2/3) ... [2020-11-22 12:56:20,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513d8055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:20, skipping insertion in model container [2020-11-22 12:56:20,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:20" (3/3) ... [2020-11-22 12:56:20,909 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2020-11-22 12:56:20,924 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:56:20,932 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:56:20,940 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:56:20,962 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:56:20,962 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:56:20,963 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:56:20,963 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:56:20,963 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:56:20,963 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:56:20,963 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:56:20,963 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:56:20,976 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-11-22 12:56:20,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 12:56:20,981 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:20,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:20,982 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:20,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:20,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1967545829, now seen corresponding path program 1 times [2020-11-22 12:56:20,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:20,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649227639] [2020-11-22 12:56:20,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:21,126 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 12:56:21,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649227639] [2020-11-22 12:56:21,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:21,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 12:56:21,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759644133] [2020-11-22 12:56:21,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:56:21,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:56:21,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:56:21,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:21,146 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2020-11-22 12:56:21,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:21,164 INFO L93 Difference]: Finished difference Result 71 states and 117 transitions. [2020-11-22 12:56:21,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:56:21,166 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-22 12:56:21,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:21,174 INFO L225 Difference]: With dead ends: 71 [2020-11-22 12:56:21,175 INFO L226 Difference]: Without dead ends: 34 [2020-11-22 12:56:21,177 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 12:56:21,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-22 12:56:21,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-22 12:56:21,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-22 12:56:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2020-11-22 12:56:21,209 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 11 [2020-11-22 12:56:21,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:21,210 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2020-11-22 12:56:21,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:56:21,210 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-11-22 12:56:21,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 12:56:21,211 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:21,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:21,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:56:21,211 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:21,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:21,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1133668527, now seen corresponding path program 1 times [2020-11-22 12:56:21,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:21,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906482610] [2020-11-22 12:56:21,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:21,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:21,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:21,527 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 12:56:21,528 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:56:21,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:56:21,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:56:21 BoogieIcfgContainer [2020-11-22 12:56:21,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:56:21,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:56:21,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:56:21,599 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:56:21,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:20" (3/4) ... [2020-11-22 12:56:21,603 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 12:56:21,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:56:21,606 INFO L168 Benchmark]: Toolchain (without parser) took 2049.43 ms. Allocated memory is still 113.2 MB. Free memory was 80.4 MB in the beginning and 48.8 MB in the end (delta: 31.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:21,607 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 75.5 MB. Free memory was 33.4 MB in the beginning and 33.4 MB in the end (delta: 38.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:21,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.66 ms. Allocated memory is still 113.2 MB. Free memory was 80.4 MB in the beginning and 86.3 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:21,610 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.76 ms. Allocated memory is still 113.2 MB. Free memory was 86.3 MB in the beginning and 83.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:21,611 INFO L168 Benchmark]: Boogie Preprocessor took 42.34 ms. Allocated memory is still 113.2 MB. Free memory was 83.7 MB in the beginning and 82.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:21,612 INFO L168 Benchmark]: RCFGBuilder took 874.91 ms. Allocated memory is still 113.2 MB. Free memory was 81.6 MB in the beginning and 82.9 MB in the end (delta: -1.2 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:21,613 INFO L168 Benchmark]: TraceAbstraction took 696.27 ms. Allocated memory is still 113.2 MB. Free memory was 82.3 MB in the beginning and 49.4 MB in the end (delta: 32.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:21,614 INFO L168 Benchmark]: Witness Printer took 5.56 ms. Allocated memory is still 113.2 MB. Free memory is still 48.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:21,623 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 75.5 MB. Free memory was 33.4 MB in the beginning and 33.4 MB in the end (delta: 38.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.66 ms. Allocated memory is still 113.2 MB. Free memory was 80.4 MB in the beginning and 86.3 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.76 ms. Allocated memory is still 113.2 MB. Free memory was 86.3 MB in the beginning and 83.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.34 ms. Allocated memory is still 113.2 MB. Free memory was 83.7 MB in the beginning and 82.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 874.91 ms. Allocated memory is still 113.2 MB. Free memory was 81.6 MB in the beginning and 82.9 MB in the end (delta: -1.2 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 696.27 ms. Allocated memory is still 113.2 MB. Free memory was 82.3 MB in the beginning and 49.4 MB in the end (delta: 32.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.56 ms. Allocated memory is still 113.2 MB. Free memory is still 48.8 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 143, overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of bitwiseAnd at line 142, overapproximation of someBinaryDOUBLEComparisonOperation at line 72. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L155] double x = 1.0 / 0.0; [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L156] double res = __ieee754_exp(x); [L135] __int32_t hx, lx; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L137] ieee_double_shape_type ew_u; [L138] ew_u.value = (x) [L139] EXPR ew_u.parts.msw [L139] (hx) = ew_u.parts.msw [L140] EXPR ew_u.parts.lsw [L140] (lx) = ew_u.parts.lsw [L142] hx &= 0x7fffffff [L143] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L144] hx = 0x7ff00000 - hx [L145] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L159] COND TRUE !isinf_double(x) [L3] __assert_fail("0", "double_req_bl_0834.c", 3, "reach_error") VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 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: 44 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=36occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 12:56:24,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:24,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:24,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:24,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:24,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:24,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:24,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:24,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:24,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:24,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:24,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:24,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:24,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:24,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:24,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:24,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:24,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:24,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:24,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:24,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:24,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:24,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:24,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:24,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:24,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:24,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:24,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:24,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:24,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:24,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:24,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:24,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:24,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:24,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:24,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:24,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:24,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:24,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:24,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:24,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:24,237 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:56:24,278 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:24,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:24,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:24,281 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:24,281 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:24,281 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:24,282 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:24,282 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:24,282 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:24,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:24,285 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:56:24,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:56:24,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:24,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:56:24,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:24,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:56:24,286 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:24,286 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:56:24,287 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:56:24,287 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:56:24,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:56:24,287 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:24,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:56:24,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:24,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:56:24,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:24,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:24,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:24,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:24,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:24,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:56:24,290 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:56:24,290 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:56:24,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:56:24,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:24,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:24,291 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_59708510-2cc5-459c-a852-eb9dedf60ce8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ea4619176830aa2eaba3eb142f65766ef4226b [2020-11-22 12:56:24,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:24,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:24,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:24,731 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:24,733 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:24,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-11-22 12:56:24,801 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/data/f4b87a61b/9808d18ad3da416b96802908e092794e/FLAG48f7cf96b [2020-11-22 12:56:25,339 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:25,340 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-11-22 12:56:25,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/data/f4b87a61b/9808d18ad3da416b96802908e092794e/FLAG48f7cf96b [2020-11-22 12:56:25,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/data/f4b87a61b/9808d18ad3da416b96802908e092794e [2020-11-22 12:56:25,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:25,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:25,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:25,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:25,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:25,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:25" (1/1) ... [2020-11-22 12:56:25,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71918b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:25, skipping insertion in model container [2020-11-22 12:56:25,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:25" (1/1) ... [2020-11-22 12:56:25,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:25,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:25,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:25,967 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:56:26,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:26,083 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:56:26,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26 WrapperNode [2020-11-22 12:56:26,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:26,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:26,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:56:26,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:56:26,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26" (1/1) ... [2020-11-22 12:56:26,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26" (1/1) ... [2020-11-22 12:56:26,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:26,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:56:26,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:56:26,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:56:26,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26" (1/1) ... [2020-11-22 12:56:26,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26" (1/1) ... [2020-11-22 12:56:26,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26" (1/1) ... [2020-11-22 12:56:26,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26" (1/1) ... [2020-11-22 12:56:26,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26" (1/1) ... [2020-11-22 12:56:26,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26" (1/1) ... [2020-11-22 12:56:26,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26" (1/1) ... [2020-11-22 12:56:26,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:56:26,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:56:26,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:56:26,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:56:26,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/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 12:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-22 12:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-22 12:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-11-22 12:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 12:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:56:26,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 12:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:56:38,625 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:56:38,626 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-22 12:56:38,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:38 BoogieIcfgContainer [2020-11-22 12:56:38,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:56:38,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:56:38,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:56:38,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:56:38,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:56:25" (1/3) ... [2020-11-22 12:56:38,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fea4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:38, skipping insertion in model container [2020-11-22 12:56:38,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:26" (2/3) ... [2020-11-22 12:56:38,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fea4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:38, skipping insertion in model container [2020-11-22 12:56:38,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:38" (3/3) ... [2020-11-22 12:56:38,635 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2020-11-22 12:56:38,645 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:56:38,650 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:56:38,660 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:56:38,681 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:56:38,681 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:56:38,681 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:56:38,681 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:56:38,681 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:56:38,682 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:56:38,682 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:56:38,682 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:56:38,694 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-11-22 12:56:38,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 12:56:38,699 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:38,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:38,700 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:38,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:38,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1546239330, now seen corresponding path program 1 times [2020-11-22 12:56:38,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:38,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111626666] [2020-11-22 12:56:38,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/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 12:56:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:39,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:56:39,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:39,378 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 12:56:39,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:39,388 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 12:56:39,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111626666] [2020-11-22 12:56:39,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:39,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:56:39,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369070772] [2020-11-22 12:56:39,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:56:39,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:39,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:56:39,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:39,417 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2020-11-22 12:56:39,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:39,452 INFO L93 Difference]: Finished difference Result 85 states and 137 transitions. [2020-11-22 12:56:39,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:56:39,454 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-22 12:56:39,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:39,468 INFO L225 Difference]: With dead ends: 85 [2020-11-22 12:56:39,468 INFO L226 Difference]: Without dead ends: 40 [2020-11-22 12:56:39,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 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 12:56:39,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-11-22 12:56:39,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-11-22 12:56:39,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-22 12:56:39,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-11-22 12:56:39,511 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 13 [2020-11-22 12:56:39,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:39,511 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-11-22 12:56:39,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:56:39,511 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-11-22 12:56:39,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 12:56:39,512 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:39,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:39,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:56:39,718 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:39,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:39,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1188959094, now seen corresponding path program 1 times [2020-11-22 12:56:39,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:39,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641090825] [2020-11-22 12:56:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/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 12:56:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:40,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 12:56:40,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:40,494 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 12:56:40,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:40,649 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 12:56:40,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641090825] [2020-11-22 12:56:40,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:40,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2020-11-22 12:56:40,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993306749] [2020-11-22 12:56:40,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 12:56:40,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:40,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 12:56:40,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:56:40,653 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 7 states. [2020-11-22 12:56:40,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:40,804 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2020-11-22 12:56:40,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:56:40,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-22 12:56:40,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:40,806 INFO L225 Difference]: With dead ends: 48 [2020-11-22 12:56:40,806 INFO L226 Difference]: Without dead ends: 20 [2020-11-22 12:56:40,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:56:40,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-22 12:56:40,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-22 12:56:40,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-22 12:56:40,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-11-22 12:56:40,810 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-11-22 12:56:40,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:40,810 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-11-22 12:56:40,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 12:56:40,811 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-22 12:56:40,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 12:56:40,811 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:40,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:41,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:56:41,026 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:41,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:41,027 INFO L82 PathProgramCache]: Analyzing trace with hash 968811170, now seen corresponding path program 1 times [2020-11-22 12:56:41,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:41,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819795750] [2020-11-22 12:56:41,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/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 [2020-11-22 12:56:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:41,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-22 12:56:41,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:41,656 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-11-22 12:56:41,671 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 12:56:41,678 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 12:56:41,678 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 12:56:41,708 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 12:56:41,710 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-11-22 12:56:41,711 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:49, output treesize:38 [2020-11-22 12:56:41,793 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 12:56:41,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:41,843 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2020-11-22 12:56:41,852 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 12:56:41,856 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 12:56:41,856 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 12:56:41,869 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 12:56:41,870 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-22 12:56:41,870 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-11-22 12:56:42,019 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 12:56:42,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819795750] [2020-11-22 12:56:42,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:42,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-22 12:56:42,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075106512] [2020-11-22 12:56:42,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:56:42,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:42,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:56:42,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:56:42,021 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-11-22 12:56:42,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:42,228 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-11-22 12:56:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:56:42,242 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-11-22 12:56:42,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:42,243 INFO L225 Difference]: With dead ends: 28 [2020-11-22 12:56:42,243 INFO L226 Difference]: Without dead ends: 20 [2020-11-22 12:56:42,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:56:42,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-22 12:56:42,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-22 12:56:42,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-22 12:56:42,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-22 12:56:42,248 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2020-11-22 12:56:42,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:42,248 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-22 12:56:42,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:56:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-22 12:56:42,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 12:56:42,249 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:42,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:42,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:56:42,450 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:42,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:42,450 INFO L82 PathProgramCache]: Analyzing trace with hash -2079354756, now seen corresponding path program 1 times [2020-11-22 12:56:42,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:42,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594756793] [2020-11-22 12:56:42,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/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 [2020-11-22 12:56:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:43,121 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:43,616 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:43,733 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:56:43,734 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:56:43,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:56:44,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:56:44 BoogieIcfgContainer [2020-11-22 12:56:44,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:56:44,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:56:44,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:56:44,010 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:56:44,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:38" (3/4) ... [2020-11-22 12:56:44,012 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:56:44,117 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_59708510-2cc5-459c-a852-eb9dedf60ce8/bin/utaipan/witness.graphml [2020-11-22 12:56:44,117 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:56:44,127 INFO L168 Benchmark]: Toolchain (without parser) took 18428.99 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.4 MB in the beginning and 20.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:44,127 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 48.2 MB. Free memory is still 31.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:44,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.94 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.2 MB in the beginning and 32.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:44,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.81 ms. Allocated memory is still 58.7 MB. Free memory was 32.4 MB in the beginning and 30.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:44,129 INFO L168 Benchmark]: Boogie Preprocessor took 62.27 ms. Allocated memory is still 58.7 MB. Free memory was 30.1 MB in the beginning and 27.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:44,130 INFO L168 Benchmark]: RCFGBuilder took 12433.16 ms. Allocated memory is still 58.7 MB. Free memory was 27.9 MB in the beginning and 39.6 MB in the end (delta: -11.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:44,130 INFO L168 Benchmark]: TraceAbstraction took 5380.37 ms. Allocated memory is still 58.7 MB. Free memory was 39.3 MB in the beginning and 26.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:44,138 INFO L168 Benchmark]: Witness Printer took 107.67 ms. Allocated memory is still 58.7 MB. Free memory was 26.8 MB in the beginning and 20.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:44,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 48.2 MB. Free memory is still 31.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 377.94 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.2 MB in the beginning and 32.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.81 ms. Allocated memory is still 58.7 MB. Free memory was 32.4 MB in the beginning and 30.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.27 ms. Allocated memory is still 58.7 MB. Free memory was 30.1 MB in the beginning and 27.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12433.16 ms. Allocated memory is still 58.7 MB. Free memory was 27.9 MB in the beginning and 39.6 MB in the end (delta: -11.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5380.37 ms. Allocated memory is still 58.7 MB. Free memory was 39.3 MB in the beginning and 26.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Witness Printer took 107.67 ms. Allocated memory is still 58.7 MB. Free memory was 26.8 MB in the beginning and 20.9 MB in the end (delta: 5.9 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: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L155] double x = 1.0 / 0.0; [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L60] COND TRUE hx >= 0x7ff00000 [L61] __uint32_t lx; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L63] ieee_double_shape_type gl_u; [L64] gl_u.value = (x) [L65] EXPR gl_u.parts.lsw [L65] (lx) = gl_u.parts.lsw [L67] COND FALSE !(((hx & 0xfffff) | lx) != 0) VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L70] EXPR (xsb == 0) ? x : 0.0 VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L70] return (xsb == 0) ? x : 0.0; [L156] double res = __ieee754_exp(x); [L135] __int32_t hx, lx; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L137] ieee_double_shape_type ew_u; [L138] ew_u.value = (x) [L139] EXPR ew_u.parts.msw [L139] (hx) = ew_u.parts.msw [L140] EXPR ew_u.parts.lsw [L140] (lx) = ew_u.parts.lsw [L142] hx &= 0x7fffffff [L143] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L144] hx = 0x7ff00000 - hx [L145] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L159] COND TRUE !isinf_double(x) [L3] __assert_fail("0", "double_req_bl_0834.c", 3, "reach_error") VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 139 SDslu, 8 SDs, 0 SdLazy, 27 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 20 QuantifiedInterpolants, 8230 SizeOfPredicates, 16 NumberOfNonLiveVariables, 306 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...