./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0683b.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_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0683b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/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 516e79809fe70e7ecdc6c9a291a13d34f08e7bb9 ............................................................................................................................................................................................................................................................................................................................................................................................ 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_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0683b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/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 516e79809fe70e7ecdc6c9a291a13d34f08e7bb9 ........................................................................................................................................................................................................................................................................................................................................................... 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 22:51:30,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:51:30,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:51:30,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:51:30,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:51:30,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:51:30,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:51:30,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:51:30,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:51:30,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:51:30,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:51:30,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:51:30,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:51:30,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:51:30,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:51:30,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:51:30,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:51:30,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:51:30,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:51:30,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:51:30,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:51:30,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:51:30,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:51:30,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:51:30,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:51:30,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:51:30,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:51:30,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:51:30,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:51:30,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:51:30,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:51:30,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:51:30,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:51:30,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:51:30,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:51:30,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:51:30,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:51:30,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:51:30,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:51:30,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:51:30,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:51:30,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:51:30,135 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:51:30,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:51:30,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:51:30,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:51:30,137 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:51:30,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:51:30,137 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:51:30,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:51:30,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:51:30,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:51:30,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:51:30,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:51:30,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:51:30,139 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:51:30,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:51:30,140 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:51:30,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:51:30,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:51:30,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:51:30,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:51:30,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:51:30,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:51:30,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:51:30,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:51:30,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:51:30,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:51:30,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:51:30,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:51:30,144 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_52ec4cc3-77d4-45bc-ac75-f51e253cf064/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 -> 516e79809fe70e7ecdc6c9a291a13d34f08e7bb9 [2019-11-15 22:51:30,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:51:30,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:51:30,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:51:30,210 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:51:30,210 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:51:30,211 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0683b.c [2019-11-15 22:51:30,261 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/data/db70019fa/481f124b768a488aaf5485e24d8caf18/FLAG3b8ec3032 [2019-11-15 22:51:30,704 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:51:30,704 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/sv-benchmarks/c/float-newlib/double_req_bl_0683b.c [2019-11-15 22:51:30,715 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/data/db70019fa/481f124b768a488aaf5485e24d8caf18/FLAG3b8ec3032 [2019-11-15 22:51:30,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/data/db70019fa/481f124b768a488aaf5485e24d8caf18 [2019-11-15 22:51:30,736 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:51:30,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:51:30,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:51:30,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:51:30,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:51:30,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:51:30" (1/1) ... [2019-11-15 22:51:30,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ef51e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:30, skipping insertion in model container [2019-11-15 22:51:30,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:51:30" (1/1) ... [2019-11-15 22:51:30,761 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:51:30,804 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:51:31,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:51:31,158 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:51:31,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:51:31,249 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:51:31,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31 WrapperNode [2019-11-15 22:51:31,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:51:31,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:51:31,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:51:31,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:51:31,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31" (1/1) ... [2019-11-15 22:51:31,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31" (1/1) ... [2019-11-15 22:51:31,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:51:31,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:51:31,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:51:31,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:51:31,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31" (1/1) ... [2019-11-15 22:51:31,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31" (1/1) ... [2019-11-15 22:51:31,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31" (1/1) ... [2019-11-15 22:51:31,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31" (1/1) ... [2019-11-15 22:51:31,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31" (1/1) ... [2019-11-15 22:51:31,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31" (1/1) ... [2019-11-15 22:51:31,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31" (1/1) ... [2019-11-15 22:51:31,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:51:31,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:51:31,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:51:31,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:51:31,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/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 22:51:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:51:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 22:51:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:51:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 22:51:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:51:31,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:51:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:51:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 22:51:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:51:32,507 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:51:32,508 INFO L284 CfgBuilder]: Removed 56 assume(true) statements. [2019-11-15 22:51:32,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:51:32 BoogieIcfgContainer [2019-11-15 22:51:32,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:51:32,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:51:32,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:51:32,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:51:32,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:51:30" (1/3) ... [2019-11-15 22:51:32,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f3235d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:51:32, skipping insertion in model container [2019-11-15 22:51:32,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:31" (2/3) ... [2019-11-15 22:51:32,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f3235d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:51:32, skipping insertion in model container [2019-11-15 22:51:32,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:51:32" (3/3) ... [2019-11-15 22:51:32,524 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683b.c [2019-11-15 22:51:32,534 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:51:32,542 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:51:32,554 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:51:32,582 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:51:32,583 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:51:32,583 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:51:32,583 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:51:32,583 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:51:32,583 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:51:32,583 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:51:32,584 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:51:32,606 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-11-15 22:51:32,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 22:51:32,614 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:51:32,615 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:51:32,616 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:51:32,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:51:32,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1964703289, now seen corresponding path program 1 times [2019-11-15 22:51:32,627 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:51:32,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491825636] [2019-11-15 22:51:32,627 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:51:32,628 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:51:32,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:51:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:51:32,769 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 22:51:32,770 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491825636] [2019-11-15 22:51:32,771 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:51:32,771 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:51:32,771 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46151314] [2019-11-15 22:51:32,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:51:32,775 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:51:32,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:51:32,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:51:32,790 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2019-11-15 22:51:32,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:51:32,822 INFO L93 Difference]: Finished difference Result 256 states and 428 transitions. [2019-11-15 22:51:32,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:51:32,824 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-15 22:51:32,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:51:32,834 INFO L225 Difference]: With dead ends: 256 [2019-11-15 22:51:32,834 INFO L226 Difference]: Without dead ends: 125 [2019-11-15 22:51:32,837 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 22:51:32,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-15 22:51:32,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-11-15 22:51:32,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-15 22:51:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2019-11-15 22:51:32,880 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 16 [2019-11-15 22:51:32,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:51:32,880 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2019-11-15 22:51:32,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:51:32,880 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2019-11-15 22:51:32,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 22:51:32,881 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:51:32,881 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:51:32,881 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:51:32,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:51:32,882 INFO L82 PathProgramCache]: Analyzing trace with hash 553662369, now seen corresponding path program 1 times [2019-11-15 22:51:32,882 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:51:32,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228329363] [2019-11-15 22:51:32,882 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:51:32,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:51:32,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:51:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:51:32,980 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 22:51:32,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228329363] [2019-11-15 22:51:32,981 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:51:32,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:51:32,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053656634] [2019-11-15 22:51:32,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:51:32,983 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:51:32,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:51:32,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:51:32,983 INFO L87 Difference]: Start difference. First operand 125 states and 175 transitions. Second operand 3 states. [2019-11-15 22:51:33,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:51:33,011 INFO L93 Difference]: Finished difference Result 239 states and 338 transitions. [2019-11-15 22:51:33,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:51:33,012 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-15 22:51:33,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:51:33,013 INFO L225 Difference]: With dead ends: 239 [2019-11-15 22:51:33,014 INFO L226 Difference]: Without dead ends: 125 [2019-11-15 22:51:33,015 INFO L600 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 [2019-11-15 22:51:33,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-15 22:51:33,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-11-15 22:51:33,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-15 22:51:33,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 174 transitions. [2019-11-15 22:51:33,025 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 174 transitions. Word has length 19 [2019-11-15 22:51:33,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:51:33,025 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 174 transitions. [2019-11-15 22:51:33,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:51:33,026 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 174 transitions. [2019-11-15 22:51:33,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-15 22:51:33,027 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:51:33,027 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:51:33,027 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:51:33,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:51:33,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1139099466, now seen corresponding path program 1 times [2019-11-15 22:51:33,027 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:51:33,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746251531] [2019-11-15 22:51:33,028 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:51:33,028 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:51:33,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:51:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:51:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:51:33,696 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:51:33,699 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:51:33,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:51:33 BoogieIcfgContainer [2019-11-15 22:51:33,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:51:33,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:51:33,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:51:33,787 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:51:33,788 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:51:32" (3/4) ... [2019-11-15 22:51:33,791 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:51:33,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:51:33,794 INFO L168 Benchmark]: Toolchain (without parser) took 3055.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 950.1 MB in the beginning and 940.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 146.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:51:33,795 INFO L168 Benchmark]: CDTParser took 0.23 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 22:51:33,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:51:33,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.11 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:51:33,805 INFO L168 Benchmark]: Boogie Preprocessor took 87.17 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:51:33,806 INFO L168 Benchmark]: RCFGBuilder took 1094.28 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: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:51:33,807 INFO L168 Benchmark]: TraceAbstraction took 1274.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 940.8 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:51:33,808 INFO L168 Benchmark]: Witness Printer took 5.40 ms. Allocated memory is still 1.2 GB. Free memory is still 940.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:51:33,817 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 510.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.11 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.17 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1094.28 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: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1274.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 940.8 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.40 ms. Allocated memory is still 1.2 GB. Free memory is still 940.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 298]: 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 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 297. 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={-1:0}, 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] [L289] double x = 1.0 / 0.0; [L290] double y = __VERIFIER_nondet_double(); [L246] __int32_t hx, lx; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, 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] [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={1:0}, atanhi_atan={-1:0}, 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] [L292] EXPR isinf_double(x) && isfinite_double(y) [L260] __int32_t hx; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, 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] [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={1:0}, atanhi_atan={-1:0}, 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] [L292] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={1:0}, atanhi_atan={-1:0}, 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] [L292] COND TRUE isinf_double(x) && isfinite_double(y) && y > 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={-1:0}, 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={-1:0}, 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={-1:0}, 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={-1:0}, 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] [L294] double res = __ieee754_atan2(y, x); [L297] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={1:0}, atanhi_atan={-1:0}, 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] [L297] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L298] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-1:0}, 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, 129 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 355 SDtfs, 0 SDslu, 169 SDs, 0 SdLazy, 5 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=129occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 567 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, 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 22:51:35,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:51:35,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:51:35,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:51:35,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:51:35,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:51:35,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:51:35,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:51:35,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:51:35,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:51:35,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:51:35,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:51:35,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:51:35,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:51:35,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:51:35,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:51:35,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:51:35,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:51:35,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:51:36,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:51:36,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:51:36,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:51:36,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:51:36,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:51:36,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:51:36,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:51:36,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:51:36,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:51:36,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:51:36,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:51:36,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:51:36,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:51:36,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:51:36,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:51:36,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:51:36,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:51:36,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:51:36,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:51:36,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:51:36,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:51:36,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:51:36,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:51:36,031 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:51:36,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:51:36,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:51:36,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:51:36,032 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:51:36,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:51:36,033 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:51:36,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:51:36,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:51:36,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:51:36,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:51:36,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:51:36,034 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:51:36,034 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:51:36,034 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:51:36,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:51:36,035 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:51:36,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:51:36,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:51:36,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:51:36,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:51:36,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:51:36,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:51:36,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:51:36,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:51:36,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:51:36,037 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:51:36,037 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:51:36,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:51:36,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:51:36,037 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_52ec4cc3-77d4-45bc-ac75-f51e253cf064/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 -> 516e79809fe70e7ecdc6c9a291a13d34f08e7bb9 [2019-11-15 22:51:36,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:51:36,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:51:36,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:51:36,082 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:51:36,083 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:51:36,084 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0683b.c [2019-11-15 22:51:36,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/data/41af9772d/a0d857928b924c938a085dffc80df00e/FLAG27ca953f3 [2019-11-15 22:51:36,566 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:51:36,566 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/sv-benchmarks/c/float-newlib/double_req_bl_0683b.c [2019-11-15 22:51:36,574 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/data/41af9772d/a0d857928b924c938a085dffc80df00e/FLAG27ca953f3 [2019-11-15 22:51:36,985 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/data/41af9772d/a0d857928b924c938a085dffc80df00e [2019-11-15 22:51:36,988 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:51:36,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:51:36,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:51:36,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:51:36,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:51:36,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:51:36" (1/1) ... [2019-11-15 22:51:36,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b59a95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:36, skipping insertion in model container [2019-11-15 22:51:36,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:51:36" (1/1) ... [2019-11-15 22:51:37,005 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:51:37,030 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:51:37,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:51:37,339 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:51:37,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:51:37,459 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:51:37,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37 WrapperNode [2019-11-15 22:51:37,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:51:37,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:51:37,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:51:37,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:51:37,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37" (1/1) ... [2019-11-15 22:51:37,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37" (1/1) ... [2019-11-15 22:51:37,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:51:37,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:51:37,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:51:37,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:51:37,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37" (1/1) ... [2019-11-15 22:51:37,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37" (1/1) ... [2019-11-15 22:51:37,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37" (1/1) ... [2019-11-15 22:51:37,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37" (1/1) ... [2019-11-15 22:51:37,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37" (1/1) ... [2019-11-15 22:51:37,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37" (1/1) ... [2019-11-15 22:51:37,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37" (1/1) ... [2019-11-15 22:51:37,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:51:37,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:51:37,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:51:37,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:51:37,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/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 22:51:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 22:51:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 22:51:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:51:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-15 22:51:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 22:51:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:51:37,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:51:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 22:51:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:52:16,745 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:52:16,745 INFO L284 CfgBuilder]: Removed 56 assume(true) statements. [2019-11-15 22:52:16,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:52:16 BoogieIcfgContainer [2019-11-15 22:52:16,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:52:16,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:52:16,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:52:16,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:52:16,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:51:36" (1/3) ... [2019-11-15 22:52:16,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ca18d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:52:16, skipping insertion in model container [2019-11-15 22:52:16,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:51:37" (2/3) ... [2019-11-15 22:52:16,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ca18d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:52:16, skipping insertion in model container [2019-11-15 22:52:16,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:52:16" (3/3) ... [2019-11-15 22:52:16,753 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683b.c [2019-11-15 22:52:16,760 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:52:16,766 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:52:16,774 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:52:16,799 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:52:16,799 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:52:16,799 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:52:16,799 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:52:16,800 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:52:16,800 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:52:16,800 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:52:16,800 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:52:16,816 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-11-15 22:52:16,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 22:52:16,821 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:52:16,822 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:52:16,823 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:52:16,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:52:16,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1964703289, now seen corresponding path program 1 times [2019-11-15 22:52:16,836 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:52:16,836 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477263356] [2019-11-15 22:52:16,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/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 22:52:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:52:17,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 22:52:17,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:52:17,237 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 22:52:17,238 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:52:17,243 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 22:52:17,246 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477263356] [2019-11-15 22:52:17,246 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:52:17,247 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 22:52:17,247 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010675719] [2019-11-15 22:52:17,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:52:17,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:52:17,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:52:17,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:52:17,267 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2019-11-15 22:52:17,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:52:17,298 INFO L93 Difference]: Finished difference Result 256 states and 428 transitions. [2019-11-15 22:52:17,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:52:17,300 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-15 22:52:17,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:52:17,312 INFO L225 Difference]: With dead ends: 256 [2019-11-15 22:52:17,312 INFO L226 Difference]: Without dead ends: 125 [2019-11-15 22:52:17,316 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 22:52:17,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-15 22:52:17,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-11-15 22:52:17,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-15 22:52:17,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2019-11-15 22:52:17,359 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 16 [2019-11-15 22:52:17,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:52:17,360 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2019-11-15 22:52:17,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:52:17,360 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2019-11-15 22:52:17,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 22:52:17,361 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:52:17,362 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:52:17,574 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:52:17,578 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:52:17,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:52:17,579 INFO L82 PathProgramCache]: Analyzing trace with hash 553662369, now seen corresponding path program 1 times [2019-11-15 22:52:17,580 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:52:17,580 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365875770] [2019-11-15 22:52:17,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/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 22:52:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:52:18,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:52:18,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:52:18,036 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 22:52:18,036 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:52:18,039 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 22:52:18,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365875770] [2019-11-15 22:52:18,040 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:52:18,040 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-15 22:52:18,040 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430415964] [2019-11-15 22:52:18,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:52:18,042 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:52:18,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:52:18,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:52:18,042 INFO L87 Difference]: Start difference. First operand 125 states and 175 transitions. Second operand 3 states. [2019-11-15 22:52:18,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:52:18,117 INFO L93 Difference]: Finished difference Result 239 states and 338 transitions. [2019-11-15 22:52:18,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:52:18,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-15 22:52:18,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:52:18,120 INFO L225 Difference]: With dead ends: 239 [2019-11-15 22:52:18,121 INFO L226 Difference]: Without dead ends: 125 [2019-11-15 22:52:18,122 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:52:18,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-15 22:52:18,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-11-15 22:52:18,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-15 22:52:18,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 174 transitions. [2019-11-15 22:52:18,134 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 174 transitions. Word has length 19 [2019-11-15 22:52:18,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:52:18,135 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 174 transitions. [2019-11-15 22:52:18,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:52:18,135 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 174 transitions. [2019-11-15 22:52:18,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-15 22:52:18,136 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:52:18,136 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:52:18,361 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 22:52:18,362 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:52:18,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:52:18,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1139099466, now seen corresponding path program 1 times [2019-11-15 22:52:18,363 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:52:18,363 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337232690] [2019-11-15 22:52:18,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52ec4cc3-77d4-45bc-ac75-f51e253cf064/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 22:52:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:52:18,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-15 22:52:18,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:52:19,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:52:19,567 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 22:52:19,567 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 22:52:19,572 INFO L168 Benchmark]: Toolchain (without parser) took 42582.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 947.0 MB in the beginning and 960.5 MB in the end (delta: -13.5 MB). Peak memory consumption was 160.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:52:19,573 INFO L168 Benchmark]: CDTParser took 0.31 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 22:52:19,573 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -210.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:52:19,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:52:19,574 INFO L168 Benchmark]: Boogie Preprocessor took 108.95 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 22:52:19,575 INFO L168 Benchmark]: RCFGBuilder took 39051.00 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: 81.2 MB). Peak memory consumption was 81.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:52:19,575 INFO L168 Benchmark]: TraceAbstraction took 2822.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.5 MB in the end (delta: 107.9 MB). Peak memory consumption was 107.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:52:19,578 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 468.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -210.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 126.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 108.95 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. * RCFGBuilder took 39051.00 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: 81.2 MB). Peak memory consumption was 81.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2822.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.5 MB in the end (delta: 107.9 MB). Peak memory consumption was 107.9 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...