./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash affc33a17eeaac5bbef8bea17cfba29382789d60 .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash affc33a17eeaac5bbef8bea17cfba29382789d60 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 19:48:25,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 19:48:25,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 19:48:25,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 19:48:25,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 19:48:25,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 19:48:25,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 19:48:25,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 19:48:25,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 19:48:25,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 19:48:25,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 19:48:25,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 19:48:25,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 19:48:25,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 19:48:25,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 19:48:25,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 19:48:25,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 19:48:25,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 19:48:25,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 19:48:25,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 19:48:25,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 19:48:25,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 19:48:25,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 19:48:25,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 19:48:25,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 19:48:25,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 19:48:25,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 19:48:25,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 19:48:25,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 19:48:25,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 19:48:25,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 19:48:25,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 19:48:25,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 19:48:25,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 19:48:25,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 19:48:25,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 19:48:25,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 19:48:25,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 19:48:25,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 19:48:25,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 19:48:25,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 19:48:25,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 19:48:25,464 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 19:48:25,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 19:48:25,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 19:48:25,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 19:48:25,466 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 19:48:25,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 19:48:25,467 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 19:48:25,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 19:48:25,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 19:48:25,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 19:48:25,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 19:48:25,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 19:48:25,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 19:48:25,468 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 19:48:25,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 19:48:25,468 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 19:48:25,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 19:48:25,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 19:48:25,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 19:48:25,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 19:48:25,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 19:48:25,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 19:48:25,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 19:48:25,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 19:48:25,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 19:48:25,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 19:48:25,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 19:48:25,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 19:48:25,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> affc33a17eeaac5bbef8bea17cfba29382789d60 [2019-11-15 19:48:25,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 19:48:25,505 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 19:48:25,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 19:48:25,510 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 19:48:25,510 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 19:48:25,511 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2019-11-15 19:48:25,561 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/data/3cffc0e9d/13732366bf4d4c3ca6b5807da200e4a2/FLAGeef5173c5 [2019-11-15 19:48:25,980 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 19:48:25,981 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2019-11-15 19:48:25,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/data/3cffc0e9d/13732366bf4d4c3ca6b5807da200e4a2/FLAGeef5173c5 [2019-11-15 19:48:25,998 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/data/3cffc0e9d/13732366bf4d4c3ca6b5807da200e4a2 [2019-11-15 19:48:26,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 19:48:26,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 19:48:26,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 19:48:26,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 19:48:26,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 19:48:26,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:48:25" (1/1) ... [2019-11-15 19:48:26,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6807562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26, skipping insertion in model container [2019-11-15 19:48:26,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:48:25" (1/1) ... [2019-11-15 19:48:26,016 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 19:48:26,050 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 19:48:26,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:48:26,302 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 19:48:26,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:48:26,379 INFO L192 MainTranslator]: Completed translation [2019-11-15 19:48:26,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26 WrapperNode [2019-11-15 19:48:26,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 19:48:26,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 19:48:26,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 19:48:26,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 19:48:26,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26" (1/1) ... [2019-11-15 19:48:26,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26" (1/1) ... [2019-11-15 19:48:26,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 19:48:26,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 19:48:26,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 19:48:26,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 19:48:26,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26" (1/1) ... [2019-11-15 19:48:26,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26" (1/1) ... [2019-11-15 19:48:26,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26" (1/1) ... [2019-11-15 19:48:26,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26" (1/1) ... [2019-11-15 19:48:26,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26" (1/1) ... [2019-11-15 19:48:26,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26" (1/1) ... [2019-11-15 19:48:26,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26" (1/1) ... [2019-11-15 19:48:26,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 19:48:26,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 19:48:26,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 19:48:26,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 19:48:26,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 19:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 19:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 19:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 19:48:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 19:48:26,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 19:48:26,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 19:48:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 19:48:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 19:48:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 19:48:27,388 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 19:48:27,388 INFO L284 CfgBuilder]: Removed 48 assume(true) statements. [2019-11-15 19:48:27,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:48:27 BoogieIcfgContainer [2019-11-15 19:48:27,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 19:48:27,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 19:48:27,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 19:48:27,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 19:48:27,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 07:48:25" (1/3) ... [2019-11-15 19:48:27,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b58dde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:48:27, skipping insertion in model container [2019-11-15 19:48:27,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:26" (2/3) ... [2019-11-15 19:48:27,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b58dde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:48:27, skipping insertion in model container [2019-11-15 19:48:27,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:48:27" (3/3) ... [2019-11-15 19:48:27,396 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661a.c [2019-11-15 19:48:27,405 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 19:48:27,413 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 19:48:27,422 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 19:48:27,452 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 19:48:27,453 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 19:48:27,453 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 19:48:27,453 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 19:48:27,453 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 19:48:27,453 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 19:48:27,454 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 19:48:27,454 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 19:48:27,480 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2019-11-15 19:48:27,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 19:48:27,489 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:48:27,490 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:48:27,492 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:48:27,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:48:27,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1517456143, now seen corresponding path program 1 times [2019-11-15 19:48:27,505 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:48:27,505 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428776616] [2019-11-15 19:48:27,506 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:48:27,506 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:48:27,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:48:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:48:27,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:48:27,695 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428776616] [2019-11-15 19:48:27,696 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:48:27,699 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 19:48:27,699 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424274893] [2019-11-15 19:48:27,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 19:48:27,704 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:48:27,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 19:48:27,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 19:48:27,719 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 2 states. [2019-11-15 19:48:27,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:48:27,774 INFO L93 Difference]: Finished difference Result 237 states and 398 transitions. [2019-11-15 19:48:27,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 19:48:27,775 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-15 19:48:27,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:48:27,788 INFO L225 Difference]: With dead ends: 237 [2019-11-15 19:48:27,788 INFO L226 Difference]: Without dead ends: 116 [2019-11-15 19:48:27,793 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 19:48:27,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-11-15 19:48:27,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-11-15 19:48:27,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-15 19:48:27,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 165 transitions. [2019-11-15 19:48:27,854 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 165 transitions. Word has length 12 [2019-11-15 19:48:27,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:48:27,854 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 165 transitions. [2019-11-15 19:48:27,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 19:48:27,854 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2019-11-15 19:48:27,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 19:48:27,857 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:48:27,857 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:48:27,857 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:48:27,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:48:27,858 INFO L82 PathProgramCache]: Analyzing trace with hash -229938040, now seen corresponding path program 1 times [2019-11-15 19:48:27,858 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:48:27,858 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73625947] [2019-11-15 19:48:27,858 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:48:27,858 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:48:27,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:48:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:48:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:48:28,150 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:48:28,151 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 19:48:28,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 07:48:28 BoogieIcfgContainer [2019-11-15 19:48:28,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 19:48:28,213 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 19:48:28,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 19:48:28,213 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 19:48:28,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:48:27" (3/4) ... [2019-11-15 19:48:28,219 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 19:48:28,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 19:48:28,222 INFO L168 Benchmark]: Toolchain (without parser) took 2219.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 944.7 MB in the beginning and 993.7 MB in the end (delta: -49.0 MB). Peak memory consumption was 76.3 MB. Max. memory is 11.5 GB. [2019-11-15 19:48:28,223 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:48:28,224 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 19:48:28,224 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:48:28,225 INFO L168 Benchmark]: Boogie Preprocessor took 65.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-15 19:48:28,225 INFO L168 Benchmark]: RCFGBuilder took 884.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. [2019-11-15 19:48:28,226 INFO L168 Benchmark]: TraceAbstraction took 822.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 993.7 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 11.5 GB. [2019-11-15 19:48:28,227 INFO L168 Benchmark]: Witness Printer took 6.37 ms. Allocated memory is still 1.2 GB. Free memory is still 993.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:48:28,234 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 378.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 884.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 822.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 993.7 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.37 ms. Allocated memory is still 1.2 GB. Free memory is still 993.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 271]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 265, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 270. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L264] double x = __VERIFIER_nondet_double(); [L265] double y = -0.0; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L267] COND TRUE x > 0.0 [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L268] double res = __ieee754_atan2(y, x); [L270] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L270] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L271] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 170 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 19:48:30,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 19:48:30,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 19:48:30,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 19:48:30,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 19:48:30,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 19:48:30,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 19:48:30,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 19:48:30,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 19:48:30,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 19:48:30,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 19:48:30,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 19:48:30,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 19:48:30,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 19:48:30,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 19:48:30,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 19:48:30,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 19:48:30,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 19:48:30,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 19:48:30,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 19:48:30,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 19:48:30,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 19:48:30,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 19:48:30,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 19:48:30,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 19:48:30,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 19:48:30,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 19:48:30,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 19:48:30,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 19:48:30,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 19:48:30,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 19:48:30,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 19:48:30,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 19:48:30,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 19:48:30,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 19:48:30,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 19:48:30,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 19:48:30,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 19:48:30,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 19:48:30,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 19:48:30,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 19:48:30,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 19:48:30,445 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 19:48:30,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 19:48:30,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 19:48:30,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 19:48:30,447 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 19:48:30,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 19:48:30,447 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 19:48:30,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 19:48:30,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 19:48:30,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 19:48:30,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 19:48:30,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 19:48:30,448 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 19:48:30,448 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 19:48:30,448 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 19:48:30,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 19:48:30,449 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 19:48:30,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 19:48:30,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 19:48:30,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 19:48:30,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 19:48:30,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 19:48:30,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 19:48:30,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 19:48:30,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 19:48:30,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 19:48:30,451 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 19:48:30,451 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 19:48:30,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 19:48:30,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 19:48:30,452 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> affc33a17eeaac5bbef8bea17cfba29382789d60 [2019-11-15 19:48:30,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 19:48:30,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 19:48:30,499 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 19:48:30,500 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 19:48:30,500 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 19:48:30,501 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2019-11-15 19:48:30,560 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/data/808d88ed0/2b8edabfe1f0468cb2f483ee7d30907e/FLAG80d0c21c3 [2019-11-15 19:48:31,033 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 19:48:31,033 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2019-11-15 19:48:31,040 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/data/808d88ed0/2b8edabfe1f0468cb2f483ee7d30907e/FLAG80d0c21c3 [2019-11-15 19:48:31,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/data/808d88ed0/2b8edabfe1f0468cb2f483ee7d30907e [2019-11-15 19:48:31,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 19:48:31,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 19:48:31,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 19:48:31,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 19:48:31,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 19:48:31,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:48:31" (1/1) ... [2019-11-15 19:48:31,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61085902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31, skipping insertion in model container [2019-11-15 19:48:31,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:48:31" (1/1) ... [2019-11-15 19:48:31,433 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 19:48:31,469 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 19:48:31,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:48:31,820 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 19:48:31,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:48:31,914 INFO L192 MainTranslator]: Completed translation [2019-11-15 19:48:31,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31 WrapperNode [2019-11-15 19:48:31,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 19:48:31,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 19:48:31,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 19:48:31,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 19:48:31,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31" (1/1) ... [2019-11-15 19:48:31,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31" (1/1) ... [2019-11-15 19:48:31,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 19:48:31,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 19:48:31,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 19:48:31,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 19:48:31,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31" (1/1) ... [2019-11-15 19:48:31,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31" (1/1) ... [2019-11-15 19:48:32,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31" (1/1) ... [2019-11-15 19:48:32,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31" (1/1) ... [2019-11-15 19:48:32,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31" (1/1) ... [2019-11-15 19:48:32,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31" (1/1) ... [2019-11-15 19:48:32,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31" (1/1) ... [2019-11-15 19:48:32,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 19:48:32,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 19:48:32,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 19:48:32,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 19:48:32,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 19:48:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 19:48:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 19:48:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 19:48:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-15 19:48:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 19:48:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 19:48:32,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 19:48:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 19:48:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 19:49:10,515 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 19:49:10,515 INFO L284 CfgBuilder]: Removed 48 assume(true) statements. [2019-11-15 19:49:10,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:49:10 BoogieIcfgContainer [2019-11-15 19:49:10,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 19:49:10,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 19:49:10,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 19:49:10,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 19:49:10,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 07:48:31" (1/3) ... [2019-11-15 19:49:10,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569d104f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:49:10, skipping insertion in model container [2019-11-15 19:49:10,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:48:31" (2/3) ... [2019-11-15 19:49:10,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569d104f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:49:10, skipping insertion in model container [2019-11-15 19:49:10,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:49:10" (3/3) ... [2019-11-15 19:49:10,522 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661a.c [2019-11-15 19:49:10,529 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 19:49:10,535 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 19:49:10,545 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 19:49:10,567 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 19:49:10,567 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 19:49:10,568 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 19:49:10,568 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 19:49:10,568 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 19:49:10,568 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 19:49:10,569 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 19:49:10,569 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 19:49:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2019-11-15 19:49:10,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 19:49:10,590 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:49:10,591 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:49:10,593 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:49:10,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:49:10,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1517456143, now seen corresponding path program 1 times [2019-11-15 19:49:10,610 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 19:49:10,611 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011796838] [2019-11-15 19:49:10,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 19:49:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:49:10,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 19:49:10,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 19:49:10,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:49:10,939 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 19:49:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:49:10,943 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011796838] [2019-11-15 19:49:10,943 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:49:10,944 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 19:49:10,944 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347420533] [2019-11-15 19:49:10,947 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 19:49:10,948 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 19:49:10,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 19:49:10,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 19:49:10,962 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 2 states. [2019-11-15 19:49:10,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:49:10,991 INFO L93 Difference]: Finished difference Result 237 states and 398 transitions. [2019-11-15 19:49:10,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 19:49:10,993 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-15 19:49:10,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:49:11,003 INFO L225 Difference]: With dead ends: 237 [2019-11-15 19:49:11,003 INFO L226 Difference]: Without dead ends: 116 [2019-11-15 19:49:11,006 INFO L600 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 [2019-11-15 19:49:11,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-11-15 19:49:11,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-11-15 19:49:11,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-15 19:49:11,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 165 transitions. [2019-11-15 19:49:11,041 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 165 transitions. Word has length 12 [2019-11-15 19:49:11,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:49:11,041 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 165 transitions. [2019-11-15 19:49:11,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 19:49:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2019-11-15 19:49:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 19:49:11,042 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:49:11,042 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:49:11,247 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 19:49:11,247 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:49:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:49:11,248 INFO L82 PathProgramCache]: Analyzing trace with hash -229938040, now seen corresponding path program 1 times [2019-11-15 19:49:11,248 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 19:49:11,249 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087605187] [2019-11-15 19:49:11,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f23af582-fed0-4817-9487-785847f89ada/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 19:49:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:49:11,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-15 19:49:11,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 19:49:11,975 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 19:49:11,976 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 19:49:11,981 INFO L168 Benchmark]: Toolchain (without parser) took 40560.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 952.3 MB in the beginning and 991.6 MB in the end (delta: -39.2 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. [2019-11-15 19:49:11,982 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:49:11,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 19:49:11,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:49:11,984 INFO L168 Benchmark]: Boogie Preprocessor took 82.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 19:49:11,985 INFO L168 Benchmark]: RCFGBuilder took 38452.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. [2019-11-15 19:49:11,985 INFO L168 Benchmark]: TraceAbstraction took 1462.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.6 MB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 11.5 GB. [2019-11-15 19:49:11,988 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 493.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 82.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 38452.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1462.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.6 MB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...