./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.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_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/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 16ed93f7e94a59686881f163258e4b8f85fe8ac8 ............................................................................................................................................................................................................................................................................................................................................................................ 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_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/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 16ed93f7e94a59686881f163258e4b8f85fe8ac8 .......................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 02:27:32,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:27:32,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:27:32,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:27:32,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:27:32,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:27:32,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:27:32,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:27:32,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:27:32,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:27:32,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:27:32,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:27:32,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:27:32,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:27:32,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:27:32,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:27:32,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:27:32,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:27:32,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:27:32,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:27:32,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:27:32,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:27:32,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:27:32,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:27:32,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:27:32,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:27:32,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:27:32,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:27:32,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:27:32,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:27:32,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:27:32,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:27:32,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:27:32,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:27:32,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:27:32,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:27:32,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:27:32,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:27:32,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:27:32,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:27:32,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:27:32,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:27:32,457 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:27:32,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:27:32,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:27:32,459 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:27:32,459 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:27:32,460 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:27:32,460 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:27:32,460 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:27:32,460 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:27:32,461 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:27:32,461 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:27:32,462 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:27:32,462 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:27:32,462 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:27:32,462 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:27:32,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:27:32,464 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:27:32,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:27:32,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:27:32,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:27:32,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:27:32,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:27:32,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:27:32,465 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:27:32,465 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:27:32,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:27:32,466 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:27:32,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:27:32,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:27:32,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:27:32,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:27:32,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:27:32,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:27:32,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:27:32,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:27:32,468 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:27:32,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:27:32,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:27:32,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:27:32,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:27:32,470 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_5c40a13b-e248-47b6-8f66-5bb748400ac7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16ed93f7e94a59686881f163258e4b8f85fe8ac8 [2020-11-30 02:27:32,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:27:32,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:27:32,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:27:32,732 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:27:32,733 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:27:32,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-11-30 02:27:32,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/data/fe01bdc13/c71ac84e5ca84645b3527c938cc28f03/FLAG185647329 [2020-11-30 02:27:33,343 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:27:33,344 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-11-30 02:27:33,356 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/data/fe01bdc13/c71ac84e5ca84645b3527c938cc28f03/FLAG185647329 [2020-11-30 02:27:33,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/data/fe01bdc13/c71ac84e5ca84645b3527c938cc28f03 [2020-11-30 02:27:33,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:27:33,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:27:33,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:27:33,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:27:33,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:27:33,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:27:33" (1/1) ... [2020-11-30 02:27:33,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17167c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:33, skipping insertion in model container [2020-11-30 02:27:33,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:27:33" (1/1) ... [2020-11-30 02:27:33,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:27:33,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:27:33,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:27:33,944 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:27:34,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:27:34,046 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:27:34,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34 WrapperNode [2020-11-30 02:27:34,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:27:34,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:27:34,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:27:34,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:27:34,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34" (1/1) ... [2020-11-30 02:27:34,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34" (1/1) ... [2020-11-30 02:27:34,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:27:34,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:27:34,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:27:34,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:27:34,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34" (1/1) ... [2020-11-30 02:27:34,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34" (1/1) ... [2020-11-30 02:27:34,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34" (1/1) ... [2020-11-30 02:27:34,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34" (1/1) ... [2020-11-30 02:27:34,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34" (1/1) ... [2020-11-30 02:27:34,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34" (1/1) ... [2020-11-30 02:27:34,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34" (1/1) ... [2020-11-30 02:27:34,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:27:34,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:27:34,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:27:34,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:27:34,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/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 [2020-11-30 02:27:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:27:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:27:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 02:27:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 02:27:34,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 02:27:34,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:27:34,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:27:34,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 02:27:34,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:27:35,061 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:27:35,061 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-30 02:27:35,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:27:35 BoogieIcfgContainer [2020-11-30 02:27:35,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:27:35,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:27:35,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:27:35,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:27:35,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:27:33" (1/3) ... [2020-11-30 02:27:35,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53064bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:27:35, skipping insertion in model container [2020-11-30 02:27:35,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:34" (2/3) ... [2020-11-30 02:27:35,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53064bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:27:35, skipping insertion in model container [2020-11-30 02:27:35,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:27:35" (3/3) ... [2020-11-30 02:27:35,077 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2020-11-30 02:27:35,087 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:27:35,091 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:27:35,102 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:27:35,135 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:27:35,135 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:27:35,135 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:27:35,135 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:27:35,135 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:27:35,135 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:27:35,135 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:27:35,135 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:27:35,145 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-30 02:27:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 02:27:35,149 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:27:35,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:27:35,149 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:27:35,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:27:35,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1926194020, now seen corresponding path program 1 times [2020-11-30 02:27:35,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:27:35,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484577343] [2020-11-30 02:27:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:27:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:27:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:27:35,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484577343] [2020-11-30 02:27:35,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:27:35,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:27:35,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536392237] [2020-11-30 02:27:35,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:27:35,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:27:35,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:27:35,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:27:35,315 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-30 02:27:35,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:27:35,334 INFO L93 Difference]: Finished difference Result 74 states and 121 transitions. [2020-11-30 02:27:35,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:27:35,335 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 02:27:35,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:27:35,344 INFO L225 Difference]: With dead ends: 74 [2020-11-30 02:27:35,344 INFO L226 Difference]: Without dead ends: 35 [2020-11-30 02:27:35,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:27:35,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-30 02:27:35,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-30 02:27:35,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-30 02:27:35,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2020-11-30 02:27:35,379 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 10 [2020-11-30 02:27:35,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:27:35,379 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2020-11-30 02:27:35,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:27:35,380 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2020-11-30 02:27:35,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:27:35,381 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:27:35,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:27:35,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:27:35,381 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:27:35,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:27:35,382 INFO L82 PathProgramCache]: Analyzing trace with hash 179490677, now seen corresponding path program 1 times [2020-11-30 02:27:35,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:27:35,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282073206] [2020-11-30 02:27:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:27:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:27:35,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:27:35,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282073206] [2020-11-30 02:27:35,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:27:35,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:27:35,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376756999] [2020-11-30 02:27:35,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:27:35,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:27:35,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:27:35,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:27:35,441 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand 3 states. [2020-11-30 02:27:35,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:27:35,468 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2020-11-30 02:27:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:27:35,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-30 02:27:35,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:27:35,470 INFO L225 Difference]: With dead ends: 65 [2020-11-30 02:27:35,470 INFO L226 Difference]: Without dead ends: 35 [2020-11-30 02:27:35,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:27:35,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-30 02:27:35,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-30 02:27:35,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-30 02:27:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2020-11-30 02:27:35,477 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 11 [2020-11-30 02:27:35,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:27:35,477 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2020-11-30 02:27:35,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:27:35,477 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2020-11-30 02:27:35,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 02:27:35,478 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:27:35,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:27:35,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:27:35,479 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:27:35,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:27:35,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1321246487, now seen corresponding path program 1 times [2020-11-30 02:27:35,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:27:35,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345562169] [2020-11-30 02:27:35,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:27:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:27:35,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:27:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:27:35,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:27:35,727 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:27:35,727 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:27:35,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 02:27:35,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:27:35 BoogieIcfgContainer [2020-11-30 02:27:35,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:27:35,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:27:35,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:27:35,775 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:27:35,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:27:35" (3/4) ... [2020-11-30 02:27:35,785 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 02:27:35,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:27:35,787 INFO L168 Benchmark]: Toolchain (without parser) took 2109.57 ms. Allocated memory is still 134.2 MB. Free memory was 102.4 MB in the beginning and 66.9 MB in the end (delta: 35.5 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:35,788 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:27:35,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.26 ms. Allocated memory is still 134.2 MB. Free memory was 102.0 MB in the beginning and 106.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:35,789 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.88 ms. Allocated memory is still 134.2 MB. Free memory was 106.0 MB in the beginning and 103.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:35,790 INFO L168 Benchmark]: Boogie Preprocessor took 62.55 ms. Allocated memory is still 134.2 MB. Free memory was 103.5 MB in the beginning and 101.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:35,791 INFO L168 Benchmark]: RCFGBuilder took 879.96 ms. Allocated memory is still 134.2 MB. Free memory was 101.4 MB in the beginning and 102.6 MB in the end (delta: -1.1 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:35,791 INFO L168 Benchmark]: TraceAbstraction took 709.26 ms. Allocated memory is still 134.2 MB. Free memory was 101.9 MB in the beginning and 67.6 MB in the end (delta: 34.3 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:35,792 INFO L168 Benchmark]: Witness Printer took 10.56 ms. Allocated memory is still 134.2 MB. Free memory was 67.6 MB in the beginning and 66.9 MB in the end (delta: 648.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:27:35,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 369.26 ms. Allocated memory is still 134.2 MB. Free memory was 102.0 MB in the beginning and 106.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.88 ms. Allocated memory is still 134.2 MB. Free memory was 106.0 MB in the beginning and 103.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.55 ms. Allocated memory is still 134.2 MB. Free memory was 103.5 MB in the beginning and 101.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 879.96 ms. Allocated memory is still 134.2 MB. Free memory was 101.4 MB in the beginning and 102.6 MB in the end (delta: -1.1 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 709.26 ms. Allocated memory is still 134.2 MB. Free memory was 101.9 MB in the beginning and 67.6 MB in the end (delta: 34.3 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Witness Printer took 10.56 ms. Allocated memory is still 134.2 MB. Free memory was 67.6 MB in the beginning and 66.9 MB in the end (delta: 648.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 163, overapproximation of bitwiseAnd at line 172, overapproximation of someBinaryArithmeticDOUBLEoperation at line 147. Possible FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; [L182] double x = __VERIFIER_nondet_double(); [L184] x < 0 && isfinite_double(x) [L166] __int32_t hx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L184] x < 0 && isfinite_double(x) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] COND TRUE x < 0 && isfinite_double(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L133] COND FALSE !(hx < 0x00100000) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L146] COND TRUE hx >= 0x7ff00000 [L147] return x + x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L186] double res = __ieee754_log10(x); [L163] return x != x; [L189] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0970a.c", 3, "reach_error") VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 0 SDslu, 38 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:27:38,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:27:38,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:27:38,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:27:38,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:27:38,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:27:38,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:27:38,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:27:38,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:27:38,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:27:38,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:27:38,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:27:38,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:27:38,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:27:38,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:27:38,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:27:38,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:27:38,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:27:38,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:27:38,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:27:38,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:27:38,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:27:38,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:27:38,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:27:38,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:27:38,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:27:38,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:27:38,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:27:38,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:27:38,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:27:38,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:27:38,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:27:38,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:27:38,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:27:38,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:27:38,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:27:38,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:27:38,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:27:38,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:27:38,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:27:38,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:27:38,349 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 02:27:38,374 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:27:38,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:27:38,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:27:38,376 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:27:38,376 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:27:38,376 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:27:38,376 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:27:38,376 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:27:38,377 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:27:38,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:27:38,378 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:27:38,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:27:38,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:27:38,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:27:38,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:27:38,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:27:38,379 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:27:38,379 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 02:27:38,379 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 02:27:38,379 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:27:38,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:27:38,380 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:27:38,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:27:38,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:27:38,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 02:27:38,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:27:38,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:27:38,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:27:38,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:27:38,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:27:38,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:27:38,382 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 02:27:38,382 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 02:27:38,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:27:38,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:27:38,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:27:38,383 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_5c40a13b-e248-47b6-8f66-5bb748400ac7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16ed93f7e94a59686881f163258e4b8f85fe8ac8 [2020-11-30 02:27:38,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:27:38,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:27:38,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:27:38,738 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:27:38,745 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:27:38,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-11-30 02:27:38,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/data/3681c7a04/3f01d417494942d599f89c7b729e3e7c/FLAGc7d68800b [2020-11-30 02:27:39,372 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:27:39,373 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-11-30 02:27:39,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/data/3681c7a04/3f01d417494942d599f89c7b729e3e7c/FLAGc7d68800b [2020-11-30 02:27:39,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/data/3681c7a04/3f01d417494942d599f89c7b729e3e7c [2020-11-30 02:27:39,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:27:39,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:27:39,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:27:39,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:27:39,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:27:39,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:27:39" (1/1) ... [2020-11-30 02:27:39,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d128099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:39, skipping insertion in model container [2020-11-30 02:27:39,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:27:39" (1/1) ... [2020-11-30 02:27:39,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:27:39,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:27:40,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:27:40,128 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:27:40,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:27:40,232 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:27:40,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40 WrapperNode [2020-11-30 02:27:40,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:27:40,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:27:40,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:27:40,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:27:40,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40" (1/1) ... [2020-11-30 02:27:40,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40" (1/1) ... [2020-11-30 02:27:40,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:27:40,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:27:40,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:27:40,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:27:40,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40" (1/1) ... [2020-11-30 02:27:40,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40" (1/1) ... [2020-11-30 02:27:40,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40" (1/1) ... [2020-11-30 02:27:40,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40" (1/1) ... [2020-11-30 02:27:40,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40" (1/1) ... [2020-11-30 02:27:40,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40" (1/1) ... [2020-11-30 02:27:40,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40" (1/1) ... [2020-11-30 02:27:40,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:27:40,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:27:40,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:27:40,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:27:40,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/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 [2020-11-30 02:27:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 02:27:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 02:27:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 02:27:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:27:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 02:27:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:27:40,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:27:40,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 02:27:40,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:28:11,542 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:28:11,542 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-30 02:28:11,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:28:11 BoogieIcfgContainer [2020-11-30 02:28:11,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:28:11,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:28:11,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:28:11,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:28:11,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:27:39" (1/3) ... [2020-11-30 02:28:11,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452bd3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:28:11, skipping insertion in model container [2020-11-30 02:28:11,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:40" (2/3) ... [2020-11-30 02:28:11,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452bd3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:28:11, skipping insertion in model container [2020-11-30 02:28:11,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:28:11" (3/3) ... [2020-11-30 02:28:11,554 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2020-11-30 02:28:11,565 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:28:11,569 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:28:11,581 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:28:11,615 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:28:11,615 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:28:11,615 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:28:11,616 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:28:11,616 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:28:11,616 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:28:11,616 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:28:11,616 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:28:11,628 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-11-30 02:28:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 02:28:11,633 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:11,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:11,634 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:11,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:11,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2020-11-30 02:28:11,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:28:11,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925402240] [2020-11-30 02:28:11,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/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 [2020-11-30 02:28:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:11,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 02:28:11,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:28:11,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:28:11,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:28:11,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:28:11,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925402240] [2020-11-30 02:28:11,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:11,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 02:28:11,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315218109] [2020-11-30 02:28:11,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:28:11,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:28:12,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:28:12,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:28:12,009 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-11-30 02:28:12,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:12,029 INFO L93 Difference]: Finished difference Result 96 states and 157 transitions. [2020-11-30 02:28:12,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:28:12,030 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-30 02:28:12,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:12,039 INFO L225 Difference]: With dead ends: 96 [2020-11-30 02:28:12,039 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 02:28:12,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:28:12,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 02:28:12,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 02:28:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 02:28:12,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-11-30 02:28:12,082 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2020-11-30 02:28:12,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:12,083 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-11-30 02:28:12,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:28:12,083 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2020-11-30 02:28:12,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 02:28:12,084 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:12,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:12,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:28:12,301 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:12,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:12,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2020-11-30 02:28:12,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:28:12,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877024780] [2020-11-30 02:28:12,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/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 [2020-11-30 02:28:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:12,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 02:28:12,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:28:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:28:12,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:28:12,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:28:12,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877024780] [2020-11-30 02:28:12,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:12,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-30 02:28:12,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650161805] [2020-11-30 02:28:12,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:28:12,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:28:12,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:28:12,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:12,563 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 3 states. [2020-11-30 02:28:12,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:12,595 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2020-11-30 02:28:12,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:28:12,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-30 02:28:12,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:12,598 INFO L225 Difference]: With dead ends: 83 [2020-11-30 02:28:12,599 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 02:28:12,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:12,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 02:28:12,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 02:28:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 02:28:12,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2020-11-30 02:28:12,617 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2020-11-30 02:28:12,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:12,618 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2020-11-30 02:28:12,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:28:12,618 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2020-11-30 02:28:12,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 02:28:12,619 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:12,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:12,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 02:28:12,836 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:12,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:12,836 INFO L82 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2020-11-30 02:28:12,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:28:12,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064633391] [2020-11-30 02:28:12,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/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 [2020-11-30 02:28:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:13,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 02:28:13,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:28:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:28:13,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:28:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:28:13,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064633391] [2020-11-30 02:28:13,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:13,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 02:28:13,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096349398] [2020-11-30 02:28:13,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 02:28:13,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:28:13,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 02:28:13,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-30 02:28:13,510 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 10 states. [2020-11-30 02:28:18,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:18,540 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2020-11-30 02:28:18,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 02:28:18,585 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-11-30 02:28:18,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:18,585 INFO L225 Difference]: With dead ends: 50 [2020-11-30 02:28:18,585 INFO L226 Difference]: Without dead ends: 19 [2020-11-30 02:28:18,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-30 02:28:18,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-30 02:28:18,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-30 02:28:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 02:28:18,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-11-30 02:28:18,589 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2020-11-30 02:28:18,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:18,590 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-11-30 02:28:18,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 02:28:18,590 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-11-30 02:28:18,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 02:28:18,590 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:18,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:18,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 02:28:18,803 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:18,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:18,804 INFO L82 PathProgramCache]: Analyzing trace with hash -675358345, now seen corresponding path program 1 times [2020-11-30 02:28:18,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:28:18,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083700382] [2020-11-30 02:28:18,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/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 [2020-11-30 02:28:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:28:19,967 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:28:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:28:21,050 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:28:21,179 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-30 02:28:21,182 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:28:21,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 02:28:21,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:28:21 BoogieIcfgContainer [2020-11-30 02:28:21,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:28:21,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:28:21,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:28:21,503 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:28:21,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:28:11" (3/4) ... [2020-11-30 02:28:21,507 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 02:28:21,602 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5c40a13b-e248-47b6-8f66-5bb748400ac7/bin/utaipan/witness.graphml [2020-11-30 02:28:21,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:28:21,605 INFO L168 Benchmark]: Toolchain (without parser) took 41867.14 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.1 MB in the beginning and 23.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:21,606 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 30.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:28:21,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.89 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.9 MB in the beginning and 39.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:21,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.06 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 37.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:21,610 INFO L168 Benchmark]: Boogie Preprocessor took 71.97 ms. Allocated memory is still 58.7 MB. Free memory was 36.8 MB in the beginning and 34.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:21,610 INFO L168 Benchmark]: RCFGBuilder took 31184.29 ms. Allocated memory is still 58.7 MB. Free memory was 34.5 MB in the beginning and 31.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:21,611 INFO L168 Benchmark]: TraceAbstraction took 9956.54 ms. Allocated memory is still 58.7 MB. Free memory was 31.4 MB in the beginning and 28.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:21,612 INFO L168 Benchmark]: Witness Printer took 100.27 ms. Allocated memory is still 58.7 MB. Free memory was 28.4 MB in the beginning and 23.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:21,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 30.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 491.89 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.9 MB in the beginning and 39.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.06 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 37.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.97 ms. Allocated memory is still 58.7 MB. Free memory was 36.8 MB in the beginning and 34.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 31184.29 ms. Allocated memory is still 58.7 MB. Free memory was 34.5 MB in the beginning and 31.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9956.54 ms. Allocated memory is still 58.7 MB. Free memory was 31.4 MB in the beginning and 28.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. * Witness Printer took 100.27 ms. Allocated memory is still 58.7 MB. Free memory was 28.4 MB in the beginning and 23.5 MB in the end (delta: 4.9 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-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L182] double x = __VERIFIER_nondet_double(); [L184] x < 0 && isfinite_double(x) [L166] __int32_t hx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L184] x < 0 && isfinite_double(x) VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L184] COND TRUE x < 0 && isfinite_double(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L133] COND TRUE hx < 0x00100000 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L134] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L135] return -two54_log10 / zero_log10; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L186] double res = __ieee754_log10(x); [L163] return x != x; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L189] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0970a.c", 3, "reach_error") VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 74 SDslu, 80 SDs, 0 SdLazy, 24 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 1.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 17 QuantifiedInterpolants, 4426 SizeOfPredicates, 8 NumberOfNonLiveVariables, 210 ConjunctsInSsa, 11 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...