./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0682b.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_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0682b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/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 a90ab4b5fd896d7fe8c91ee95d37e83b559389ba ........................................................................................................................................................................................................................................................................................................................................................................................... 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_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0682b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/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 a90ab4b5fd896d7fe8c91ee95d37e83b559389ba ............................................................................................................................................................................................................................................................................................................................................................................. 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 [2019-11-16 00:06:08,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:06:08,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:06:08,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:06:08,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:06:08,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:06:08,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:06:08,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:06:08,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:06:08,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:06:08,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:06:08,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:06:08,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:06:08,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:06:08,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:06:08,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:06:08,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:06:08,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:06:08,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:06:08,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:06:08,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:06:08,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:06:08,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:06:08,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:06:08,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:06:08,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:06:08,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:06:08,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:06:08,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:06:08,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:06:08,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:06:08,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:06:08,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:06:08,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:06:08,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:06:08,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:06:08,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:06:08,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:06:08,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:06:08,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:06:08,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:06:08,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:06:08,481 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:06:08,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:06:08,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:06:08,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:06:08,483 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:06:08,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:06:08,483 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:06:08,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:06:08,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:06:08,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:06:08,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:06:08,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:06:08,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:06:08,485 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:06:08,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:06:08,485 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:06:08,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:06:08,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:06:08,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:06:08,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:06:08,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:06:08,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:06:08,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:06:08,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:06:08,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:06:08,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:06:08,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:06:08,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:06:08,488 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_eac53de2-2c25-4deb-a569-4cd5f7625c34/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 -> a90ab4b5fd896d7fe8c91ee95d37e83b559389ba [2019-11-16 00:06:08,523 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:06:08,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:06:08,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:06:08,537 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:06:08,537 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:06:08,538 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0682b.c [2019-11-16 00:06:08,594 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/data/7be44585e/a9d07981442c4f3ebba7e7d2c7011cbe/FLAGc6334d261 [2019-11-16 00:06:09,002 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:06:09,002 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/sv-benchmarks/c/float-newlib/double_req_bl_0682b.c [2019-11-16 00:06:09,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/data/7be44585e/a9d07981442c4f3ebba7e7d2c7011cbe/FLAGc6334d261 [2019-11-16 00:06:09,364 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/data/7be44585e/a9d07981442c4f3ebba7e7d2c7011cbe [2019-11-16 00:06:09,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:06:09,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:06:09,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:06:09,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:06:09,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:06:09,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:06:09" (1/1) ... [2019-11-16 00:06:09,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db9e7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09, skipping insertion in model container [2019-11-16 00:06:09,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:06:09" (1/1) ... [2019-11-16 00:06:09,384 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:06:09,430 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:06:09,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:06:09,796 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:06:09,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:06:09,904 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:06:09,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09 WrapperNode [2019-11-16 00:06:09,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:06:09,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:06:09,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:06:09,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:06:09,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09" (1/1) ... [2019-11-16 00:06:09,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09" (1/1) ... [2019-11-16 00:06:10,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:06:10,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:06:10,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:06:10,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:06:10,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09" (1/1) ... [2019-11-16 00:06:10,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09" (1/1) ... [2019-11-16 00:06:10,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09" (1/1) ... [2019-11-16 00:06:10,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09" (1/1) ... [2019-11-16 00:06:10,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09" (1/1) ... [2019-11-16 00:06:10,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09" (1/1) ... [2019-11-16 00:06:10,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09" (1/1) ... [2019-11-16 00:06:10,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:06:10,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:06:10,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:06:10,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:06:10,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/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 [2019-11-16 00:06:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:06:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-16 00:06:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:06:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-16 00:06:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:06:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:06:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:06:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-16 00:06:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:06:10,968 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:06:10,969 INFO L284 CfgBuilder]: Removed 52 assume(true) statements. [2019-11-16 00:06:10,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:06:10 BoogieIcfgContainer [2019-11-16 00:06:10,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:06:10,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:06:10,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:06:10,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:06:10,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:06:09" (1/3) ... [2019-11-16 00:06:10,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f25788f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:06:10, skipping insertion in model container [2019-11-16 00:06:10,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:09" (2/3) ... [2019-11-16 00:06:10,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f25788f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:06:10, skipping insertion in model container [2019-11-16 00:06:10,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:06:10" (3/3) ... [2019-11-16 00:06:10,977 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682b.c [2019-11-16 00:06:10,987 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:06:10,994 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:06:11,008 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:06:11,033 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:06:11,033 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:06:11,033 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:06:11,034 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:06:11,034 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:06:11,034 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:06:11,034 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:06:11,034 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:06:11,050 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2019-11-16 00:06:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-16 00:06:11,056 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:06:11,057 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:06:11,058 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:06:11,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:06:11,064 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2019-11-16 00:06:11,072 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:06:11,072 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412653001] [2019-11-16 00:06:11,072 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:06:11,073 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:06:11,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:06:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:06:11,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:06:11,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412653001] [2019-11-16 00:06:11,234 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:06:11,235 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:06:11,235 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849057596] [2019-11-16 00:06:11,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:06:11,241 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:06:11,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:06:11,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:06:11,253 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2019-11-16 00:06:11,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:06:11,280 INFO L93 Difference]: Finished difference Result 246 states and 412 transitions. [2019-11-16 00:06:11,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:06:11,281 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-11-16 00:06:11,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:06:11,292 INFO L225 Difference]: With dead ends: 246 [2019-11-16 00:06:11,292 INFO L226 Difference]: Without dead ends: 120 [2019-11-16 00:06:11,296 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 [2019-11-16 00:06:11,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-16 00:06:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-11-16 00:06:11,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-16 00:06:11,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 169 transitions. [2019-11-16 00:06:11,339 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 169 transitions. Word has length 15 [2019-11-16 00:06:11,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:06:11,339 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 169 transitions. [2019-11-16 00:06:11,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:06:11,340 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 169 transitions. [2019-11-16 00:06:11,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-16 00:06:11,341 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:06:11,341 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:06:11,341 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:06:11,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:06:11,342 INFO L82 PathProgramCache]: Analyzing trace with hash -397782484, now seen corresponding path program 1 times [2019-11-16 00:06:11,342 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:06:11,342 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442460386] [2019-11-16 00:06:11,342 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:06:11,342 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:06:11,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:06:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:06:11,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:06:11,435 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442460386] [2019-11-16 00:06:11,435 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:06:11,435 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:06:11,436 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617947786] [2019-11-16 00:06:11,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:06:11,437 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:06:11,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:06:11,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:06:11,438 INFO L87 Difference]: Start difference. First operand 120 states and 169 transitions. Second operand 3 states. [2019-11-16 00:06:11,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:06:11,474 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2019-11-16 00:06:11,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:06:11,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-16 00:06:11,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:06:11,477 INFO L225 Difference]: With dead ends: 229 [2019-11-16 00:06:11,477 INFO L226 Difference]: Without dead ends: 120 [2019-11-16 00:06:11,478 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 [2019-11-16 00:06:11,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-16 00:06:11,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-11-16 00:06:11,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-16 00:06:11,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2019-11-16 00:06:11,488 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 18 [2019-11-16 00:06:11,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:06:11,489 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2019-11-16 00:06:11,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:06:11,489 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2019-11-16 00:06:11,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-16 00:06:11,490 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:06:11,490 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] [2019-11-16 00:06:11,492 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:06:11,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:06:11,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1006577033, now seen corresponding path program 1 times [2019-11-16 00:06:11,494 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:06:11,495 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787334792] [2019-11-16 00:06:11,495 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:06:11,495 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:06:11,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:06:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:06:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:06:12,264 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:06:12,267 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:06:12,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:06:12 BoogieIcfgContainer [2019-11-16 00:06:12,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:06:12,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:06:12,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:06:12,354 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:06:12,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:06:10" (3/4) ... [2019-11-16 00:06:12,358 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:06:12,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:06:12,360 INFO L168 Benchmark]: Toolchain (without parser) took 2991.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 950.2 MB in the beginning and 913.9 MB in the end (delta: 36.3 MB). Peak memory consumption was 167.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:06:12,361 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:06:12,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:06:12,370 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.96 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. [2019-11-16 00:06:12,371 INFO L168 Benchmark]: Boogie Preprocessor took 97.34 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: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:06:12,372 INFO L168 Benchmark]: RCFGBuilder took 867.11 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: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:06:12,373 INFO L168 Benchmark]: TraceAbstraction took 1381.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 913.9 MB in the end (delta: 127.4 MB). Peak memory consumption was 127.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:06:12,374 INFO L168 Benchmark]: Witness Printer took 5.28 ms. Allocated memory is still 1.2 GB. Free memory is still 913.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:06:12,380 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 536.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 99.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 97.34 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: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 867.11 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: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1381.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 913.9 MB in the end (delta: 127.4 MB). Peak memory consumption was 127.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.28 ms. Allocated memory is still 1.2 GB. Free memory is still 913.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 285]: 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 284. 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={-5:0}, atanlo_atan={-10:0}, 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] [L276] double x = -1.0 / 0.0; [L277] double y = __VERIFIER_nondet_double(); [L246] __int32_t hx, lx; VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, 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={-5:0}, atanlo_atan={-10:0}, 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] [L279] EXPR isinf_double(x) && isfinite_double(y) [L260] __int32_t hx; VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, 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={-5:0}, atanlo_atan={-10:0}, 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] [L279] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, 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] [L279] 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={-5:0}, atanlo_atan={-10:0}, 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={-5:0}, atanlo_atan={-10:0}, 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={-5:0}, atanlo_atan={-10:0}, 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={-5:0}, atanlo_atan={-10:0}, 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] [L281] double res = __ieee754_atan2(y, x); [L284] COND TRUE res != pi VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, 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] [L285] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, 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, 124 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 343 SDtfs, 0 SDslu, 163 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=124occurred 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, 0.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 502 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 [2019-11-16 00:06:14,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:06:14,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:06:14,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:06:14,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:06:14,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:06:14,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:06:14,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:06:14,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:06:14,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:06:14,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:06:14,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:06:14,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:06:14,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:06:14,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:06:14,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:06:14,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:06:14,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:06:14,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:06:14,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:06:14,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:06:14,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:06:14,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:06:14,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:06:14,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:06:14,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:06:14,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:06:14,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:06:14,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:06:14,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:06:14,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:06:14,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:06:14,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:06:14,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:06:14,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:06:14,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:06:14,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:06:14,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:06:14,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:06:14,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:06:14,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:06:14,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:06:14,695 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:06:14,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:06:14,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:06:14,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:06:14,698 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:06:14,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:06:14,698 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:06:14,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:06:14,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:06:14,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:06:14,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:06:14,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:06:14,700 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:06:14,700 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:06:14,700 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:06:14,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:06:14,700 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:06:14,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:06:14,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:06:14,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:06:14,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:06:14,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:06:14,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:06:14,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:06:14,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:06:14,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:06:14,702 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:06:14,703 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:06:14,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:06:14,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:06:14,703 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_eac53de2-2c25-4deb-a569-4cd5f7625c34/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 -> a90ab4b5fd896d7fe8c91ee95d37e83b559389ba [2019-11-16 00:06:14,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:06:14,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:06:14,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:06:14,760 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:06:14,760 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:06:14,761 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0682b.c [2019-11-16 00:06:14,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/data/8723a3834/cb75b4c608934df5979e84a6e214c3f7/FLAG119cea014 [2019-11-16 00:06:15,241 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:06:15,241 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/sv-benchmarks/c/float-newlib/double_req_bl_0682b.c [2019-11-16 00:06:15,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/data/8723a3834/cb75b4c608934df5979e84a6e214c3f7/FLAG119cea014 [2019-11-16 00:06:15,545 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/bin/uautomizer/data/8723a3834/cb75b4c608934df5979e84a6e214c3f7 [2019-11-16 00:06:15,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:06:15,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:06:15,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:06:15,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:06:15,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:06:15,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:06:15" (1/1) ... [2019-11-16 00:06:15,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6482b918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15, skipping insertion in model container [2019-11-16 00:06:15,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:06:15" (1/1) ... [2019-11-16 00:06:15,561 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:06:15,584 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:06:15,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:06:15,818 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:06:15,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:06:15,998 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:06:15,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15 WrapperNode [2019-11-16 00:06:15,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:06:15,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:06:16,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:06:16,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:06:16,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15" (1/1) ... [2019-11-16 00:06:16,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15" (1/1) ... [2019-11-16 00:06:16,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:06:16,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:06:16,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:06:16,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:06:16,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15" (1/1) ... [2019-11-16 00:06:16,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15" (1/1) ... [2019-11-16 00:06:16,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15" (1/1) ... [2019-11-16 00:06:16,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15" (1/1) ... [2019-11-16 00:06:16,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15" (1/1) ... [2019-11-16 00:06:16,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15" (1/1) ... [2019-11-16 00:06:16,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15" (1/1) ... [2019-11-16 00:06:16,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:06:16,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:06:16,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:06:16,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:06:16,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/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 [2019-11-16 00:06:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-16 00:06:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-16 00:06:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:06:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-16 00:06:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-16 00:06:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:06:16,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:06:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:06:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:06:56,245 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:06:56,246 INFO L284 CfgBuilder]: Removed 52 assume(true) statements. [2019-11-16 00:06:56,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:06:56 BoogieIcfgContainer [2019-11-16 00:06:56,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:06:56,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:06:56,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:06:56,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:06:56,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:06:15" (1/3) ... [2019-11-16 00:06:56,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154b66ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:06:56, skipping insertion in model container [2019-11-16 00:06:56,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:15" (2/3) ... [2019-11-16 00:06:56,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154b66ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:06:56, skipping insertion in model container [2019-11-16 00:06:56,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:06:56" (3/3) ... [2019-11-16 00:06:56,258 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682b.c [2019-11-16 00:06:56,270 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:06:56,279 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:06:56,291 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:06:56,330 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:06:56,331 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:06:56,331 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:06:56,331 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:06:56,332 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:06:56,332 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:06:56,332 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:06:56,332 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:06:56,355 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2019-11-16 00:06:56,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-16 00:06:56,361 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:06:56,362 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:06:56,364 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:06:56,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:06:56,370 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2019-11-16 00:06:56,383 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:06:56,384 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440196607] [2019-11-16 00:06:56,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/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 [2019-11-16 00:06:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:06:56,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-16 00:06:56,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:06:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:06:56,783 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:06:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:06:56,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440196607] [2019-11-16 00:06:56,793 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:06:56,793 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-16 00:06:56,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313020730] [2019-11-16 00:06:56,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:06:56,798 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:06:56,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:06:56,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:06:56,813 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2019-11-16 00:06:56,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:06:56,862 INFO L93 Difference]: Finished difference Result 246 states and 412 transitions. [2019-11-16 00:06:56,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:06:56,864 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-11-16 00:06:56,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:06:56,880 INFO L225 Difference]: With dead ends: 246 [2019-11-16 00:06:56,881 INFO L226 Difference]: Without dead ends: 120 [2019-11-16 00:06:56,884 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:06:56,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-16 00:06:56,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-11-16 00:06:56,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-16 00:06:56,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 169 transitions. [2019-11-16 00:06:56,938 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 169 transitions. Word has length 15 [2019-11-16 00:06:56,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:06:56,939 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 169 transitions. [2019-11-16 00:06:56,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:06:56,939 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 169 transitions. [2019-11-16 00:06:56,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-16 00:06:56,942 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:06:56,942 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:06:57,158 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:06:57,158 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:06:57,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:06:57,159 INFO L82 PathProgramCache]: Analyzing trace with hash -397782484, now seen corresponding path program 1 times [2019-11-16 00:06:57,160 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:06:57,160 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54152546] [2019-11-16 00:06:57,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/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 [2019-11-16 00:06:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:06:57,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:06:57,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:06:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:06:57,570 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:06:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:06:57,574 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54152546] [2019-11-16 00:06:57,575 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:06:57,575 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-16 00:06:57,575 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230735373] [2019-11-16 00:06:57,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:06:57,577 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:06:57,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:06:57,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:06:57,578 INFO L87 Difference]: Start difference. First operand 120 states and 169 transitions. Second operand 3 states. [2019-11-16 00:06:57,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:06:57,628 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2019-11-16 00:06:57,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:06:57,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-16 00:06:57,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:06:57,631 INFO L225 Difference]: With dead ends: 229 [2019-11-16 00:06:57,631 INFO L226 Difference]: Without dead ends: 120 [2019-11-16 00:06:57,632 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:06:57,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-16 00:06:57,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-11-16 00:06:57,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-16 00:06:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2019-11-16 00:06:57,642 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 18 [2019-11-16 00:06:57,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:06:57,642 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2019-11-16 00:06:57,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:06:57,643 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2019-11-16 00:06:57,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-16 00:06:57,644 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:06:57,644 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] [2019-11-16 00:06:57,852 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-16 00:06:57,853 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:06:57,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:06:57,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1006577033, now seen corresponding path program 1 times [2019-11-16 00:06:57,854 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:06:57,854 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647092658] [2019-11-16 00:06:57,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eac53de2-2c25-4deb-a569-4cd5f7625c34/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 [2019-11-16 00:06:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:06:58,358 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-16 00:06:58,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:06:58,504 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:06:58,782 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-16 00:06:58,805 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 47 [2019-11-16 00:06:58,829 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2019-11-16 00:06:58,830 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-16 00:06:58,847 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:06:58,862 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:06:58,862 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2019-11-16 00:06:58,863 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-16 00:06:58,867 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:06:58,868 INFO L496 ElimStorePlain]: Start of recursive call 2: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:06:58,913 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:06:58,915 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-16 00:06:58,915 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:93, output treesize:52 [2019-11-16 00:07:01,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:07:01,530 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:07:01,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:07:01,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:07:02,188 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-16 00:07:02,192 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.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:335) 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) [2019-11-16 00:07:02,198 INFO L168 Benchmark]: Toolchain (without parser) took 46648.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 951.0 MB in the beginning and 889.3 MB in the end (delta: 61.7 MB). Peak memory consumption was 220.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:07:02,198 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:07:02,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 449.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -202.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:07:02,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:07:02,200 INFO L168 Benchmark]: Boogie Preprocessor took 85.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:07:02,201 INFO L168 Benchmark]: RCFGBuilder took 40090.33 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: 73.2 MB). Peak memory consumption was 73.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:07:02,201 INFO L168 Benchmark]: TraceAbstraction took 5947.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 889.3 MB in the end (delta: 172.6 MB). Peak memory consumption was 172.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:07:02,205 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 449.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -202.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 40090.33 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: 73.2 MB). Peak memory consumption was 73.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5947.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 889.3 MB in the end (delta: 172.6 MB). Peak memory consumption was 172.6 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...