./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0683b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0683b.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 516e79809fe70e7ecdc6c9a291a13d34f08e7bb9 ............................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0683b.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 516e79809fe70e7ecdc6c9a291a13d34f08e7bb9 ........................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:08,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:08,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:08,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:08,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:08,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:08,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:08,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:08,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:08,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:08,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:08,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:08,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:08,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:08,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:08,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:08,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:08,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:08,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:08,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:08,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:08,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:08,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:08,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:08,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:08,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:08,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:08,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:08,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:08,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:08,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:08,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:08,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:08,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:08,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:08,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:08,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:08,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:08,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:08,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:08,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:08,413 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:01:08,432 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:08,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:08,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:08,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:08,435 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:08,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:08,435 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:08,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:08,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:08,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:08,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:01:08,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:08,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:01:08,437 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:08,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:08,437 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:08,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:01:08,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:08,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:08,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:08,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:08,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:08,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:08,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:08,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:01:08,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:08,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:08,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:01:08,444 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/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516e79809fe70e7ecdc6c9a291a13d34f08e7bb9 [2019-10-22 09:01:08,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:08,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:08,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:08,485 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:08,485 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:08,486 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0683b.c [2019-10-22 09:01:08,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/data/d551f408b/066c87d8144e4e6e85194baa5452111f/FLAG53b413ff9 [2019-10-22 09:01:08,949 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:08,949 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/sv-benchmarks/c/float-newlib/double_req_bl_0683b.c [2019-10-22 09:01:08,955 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/data/d551f408b/066c87d8144e4e6e85194baa5452111f/FLAG53b413ff9 [2019-10-22 09:01:08,965 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/data/d551f408b/066c87d8144e4e6e85194baa5452111f [2019-10-22 09:01:08,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:08,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:08,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:08,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:08,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:08,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:08,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d973d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08, skipping insertion in model container [2019-10-22 09:01:08,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:08,984 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:09,010 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:09,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:09,358 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:09,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:09,450 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:09,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09 WrapperNode [2019-10-22 09:01:09,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:09,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:09,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:09,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:09,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:09,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:09,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:09,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:09,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:09,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:09,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:09,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:09,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/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 [2019-10-22 09:01:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 09:01:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 09:01:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:09,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:01:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-10-22 09:01:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:10,542 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:10,542 INFO L284 CfgBuilder]: Removed 56 assume(true) statements. [2019-10-22 09:01:10,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:10 BoogieIcfgContainer [2019-10-22 09:01:10,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:10,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:10,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:10,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:10,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:08" (1/3) ... [2019-10-22 09:01:10,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5765427c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:10, skipping insertion in model container [2019-10-22 09:01:10,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (2/3) ... [2019-10-22 09:01:10,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5765427c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:10, skipping insertion in model container [2019-10-22 09:01:10,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:10" (3/3) ... [2019-10-22 09:01:10,553 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683b.c [2019-10-22 09:01:10,563 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:10,576 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:01:10,588 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:01:10,627 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:10,628 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:01:10,628 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:10,628 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:10,628 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:10,629 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:10,629 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:10,629 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:10,651 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-10-22 09:01:10,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 09:01:10,659 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:10,660 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:10,662 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:10,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1964703289, now seen corresponding path program 1 times [2019-10-22 09:01:10,678 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:10,678 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773851429] [2019-10-22 09:01:10,679 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,679 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:10,811 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773851429] [2019-10-22 09:01:10,812 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:10,812 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:10,813 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450001837] [2019-10-22 09:01:10,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:01:10,817 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:10,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:01:10,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:01:10,832 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2019-10-22 09:01:10,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:10,860 INFO L93 Difference]: Finished difference Result 256 states and 428 transitions. [2019-10-22 09:01:10,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:01:10,861 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 09:01:10,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:10,871 INFO L225 Difference]: With dead ends: 256 [2019-10-22 09:01:10,872 INFO L226 Difference]: Without dead ends: 125 [2019-10-22 09:01:10,875 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 [2019-10-22 09:01:10,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-22 09:01:10,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-10-22 09:01:10,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-22 09:01:10,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2019-10-22 09:01:10,915 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 16 [2019-10-22 09:01:10,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:10,915 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2019-10-22 09:01:10,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:01:10,916 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2019-10-22 09:01:10,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:01:10,916 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:10,916 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:10,917 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:10,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,917 INFO L82 PathProgramCache]: Analyzing trace with hash 553662369, now seen corresponding path program 1 times [2019-10-22 09:01:10,917 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:10,918 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146123171] [2019-10-22 09:01:10,918 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,918 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:11,005 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146123171] [2019-10-22 09:01:11,005 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:11,006 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:11,006 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308883471] [2019-10-22 09:01:11,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:11,007 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:11,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:11,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:11,009 INFO L87 Difference]: Start difference. First operand 125 states and 175 transitions. Second operand 3 states. [2019-10-22 09:01:11,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:11,036 INFO L93 Difference]: Finished difference Result 239 states and 338 transitions. [2019-10-22 09:01:11,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:11,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 09:01:11,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:11,038 INFO L225 Difference]: With dead ends: 239 [2019-10-22 09:01:11,038 INFO L226 Difference]: Without dead ends: 125 [2019-10-22 09:01:11,039 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 [2019-10-22 09:01:11,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-22 09:01:11,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-10-22 09:01:11,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-22 09:01:11,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 174 transitions. [2019-10-22 09:01:11,052 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 174 transitions. Word has length 19 [2019-10-22 09:01:11,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:11,052 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 174 transitions. [2019-10-22 09:01:11,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:11,052 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 174 transitions. [2019-10-22 09:01:11,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 09:01:11,053 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:11,053 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:11,053 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:11,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:11,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1139099466, now seen corresponding path program 1 times [2019-10-22 09:01:11,054 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:11,054 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180742726] [2019-10-22 09:01:11,054 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:11,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:11,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:11,691 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:11,691 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:01:11,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:11 BoogieIcfgContainer [2019-10-22 09:01:11,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:11,735 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:11,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:11,735 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:11,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:10" (3/4) ... [2019-10-22 09:01:11,740 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:01:11,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:11,742 INFO L168 Benchmark]: Toolchain (without parser) took 2772.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 941.8 MB in the beginning and 941.8 MB in the end (delta: 19.4 kB). Peak memory consumption was 142.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:11,742 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:11,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:11,744 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.34 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: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:11,744 INFO L168 Benchmark]: Boogie Preprocessor took 90.40 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:11,745 INFO L168 Benchmark]: RCFGBuilder took 907.76 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: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:11,746 INFO L168 Benchmark]: TraceAbstraction took 1190.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.8 MB in the end (delta: 110.0 MB). Peak memory consumption was 110.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:11,746 INFO L168 Benchmark]: Witness Printer took 5.01 ms. Allocated memory is still 1.2 GB. Free memory is still 941.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:11,750 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 481.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.34 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: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 90.40 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 907.76 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: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1190.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.8 MB in the end (delta: 110.0 MB). Peak memory consumption was 110.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.01 ms. Allocated memory is still 1.2 GB. Free memory is still 941.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 298]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 297. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L289] double x = 1.0 / 0.0; [L290] double y = __VERIFIER_nondet_double(); [L246] __int32_t hx, lx; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L292] EXPR isinf_double(x) && isfinite_double(y) [L260] __int32_t hx; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L292] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L292] COND TRUE isinf_double(x) && isfinite_double(y) && y > 0.0 [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L294] double res = __ieee754_atan2(y, x); [L297] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L297] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L298] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 355 SDtfs, 0 SDslu, 169 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:13,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:13,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:13,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:13,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:13,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:13,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:13,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:13,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:13,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:13,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:13,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:13,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:13,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:13,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:13,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:13,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:13,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:13,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:13,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:13,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:13,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:13,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:13,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:13,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:13,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:13,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:13,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:13,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:13,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:13,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:13,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:13,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:13,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:13,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:13,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:13,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:13,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:13,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:13,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:13,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:13,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 09:01:13,893 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:13,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:13,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:13,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:13,895 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:13,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:13,895 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:13,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:13,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:13,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:01:13,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:13,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:01:13,896 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:01:13,896 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:01:13,896 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:13,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:13,897 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:13,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:01:13,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:13,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:13,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:13,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:13,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:13,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:13,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:13,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:01:13,898 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:01:13,898 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:01:13,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:01:13,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:01:13,899 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/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516e79809fe70e7ecdc6c9a291a13d34f08e7bb9 [2019-10-22 09:01:13,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:13,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:13,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:13,941 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:13,942 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:13,942 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0683b.c [2019-10-22 09:01:13,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/data/16efabb49/f303501d4f7f4e3ca9203e5339b79827/FLAG36161dd2d [2019-10-22 09:01:14,449 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:14,452 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/sv-benchmarks/c/float-newlib/double_req_bl_0683b.c [2019-10-22 09:01:14,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/data/16efabb49/f303501d4f7f4e3ca9203e5339b79827/FLAG36161dd2d [2019-10-22 09:01:14,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/bin/uautomizer/data/16efabb49/f303501d4f7f4e3ca9203e5339b79827 [2019-10-22 09:01:14,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:14,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:14,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:14,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:14,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:14,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:14" (1/1) ... [2019-10-22 09:01:14,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f029b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:14, skipping insertion in model container [2019-10-22 09:01:14,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:14" (1/1) ... [2019-10-22 09:01:14,816 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:14,840 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:15,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:15,131 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:15,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:15,296 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:15,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15 WrapperNode [2019-10-22 09:01:15,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:15,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:15,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:15,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:15,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15" (1/1) ... [2019-10-22 09:01:15,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15" (1/1) ... [2019-10-22 09:01:15,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:15,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:15,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:15,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:15,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15" (1/1) ... [2019-10-22 09:01:15,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15" (1/1) ... [2019-10-22 09:01:15,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15" (1/1) ... [2019-10-22 09:01:15,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15" (1/1) ... [2019-10-22 09:01:15,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15" (1/1) ... [2019-10-22 09:01:15,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15" (1/1) ... [2019-10-22 09:01:15,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15" (1/1) ... [2019-10-22 09:01:15,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:15,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:15,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:15,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:15,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/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 [2019-10-22 09:01:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-10-22 09:01:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-10-22 09:01:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-10-22 09:01:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 09:01:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 09:01:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:51,978 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:51,978 INFO L284 CfgBuilder]: Removed 56 assume(true) statements. [2019-10-22 09:01:51,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:51 BoogieIcfgContainer [2019-10-22 09:01:51,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:51,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:51,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:51,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:51,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:14" (1/3) ... [2019-10-22 09:01:51,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413ca45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:51, skipping insertion in model container [2019-10-22 09:01:51,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:15" (2/3) ... [2019-10-22 09:01:51,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413ca45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:51, skipping insertion in model container [2019-10-22 09:01:51,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:51" (3/3) ... [2019-10-22 09:01:51,989 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683b.c [2019-10-22 09:01:51,999 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:52,009 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:01:52,020 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:01:52,045 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:52,045 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:01:52,046 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:52,046 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:52,046 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:52,046 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:52,046 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:52,046 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-10-22 09:01:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 09:01:52,066 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:52,067 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:52,069 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:52,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:52,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1964703289, now seen corresponding path program 1 times [2019-10-22 09:01:52,082 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:52,082 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640103204] [2019-10-22 09:01:52,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/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 [2019-10-22 09:01:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:52,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 09:01:52,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:52,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:52,404 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:01:52,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:52,410 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640103204] [2019-10-22 09:01:52,411 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:52,411 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 09:01:52,412 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152928974] [2019-10-22 09:01:52,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:01:52,417 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:01:52,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:01:52,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:01:52,434 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2019-10-22 09:01:52,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:52,469 INFO L93 Difference]: Finished difference Result 256 states and 428 transitions. [2019-10-22 09:01:52,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:01:52,470 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 09:01:52,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:52,484 INFO L225 Difference]: With dead ends: 256 [2019-10-22 09:01:52,484 INFO L226 Difference]: Without dead ends: 125 [2019-10-22 09:01:52,488 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:01:52,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-22 09:01:52,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-10-22 09:01:52,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-22 09:01:52,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2019-10-22 09:01:52,533 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 16 [2019-10-22 09:01:52,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:52,534 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2019-10-22 09:01:52,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:01:52,534 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2019-10-22 09:01:52,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:01:52,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:52,535 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:52,747 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 09:01:52,747 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:52,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:52,748 INFO L82 PathProgramCache]: Analyzing trace with hash 553662369, now seen corresponding path program 1 times [2019-10-22 09:01:52,748 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:52,749 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875849384] [2019-10-22 09:01:52,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/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 [2019-10-22 09:01:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:53,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:53,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:53,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:53,187 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:01:53,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:53,190 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875849384] [2019-10-22 09:01:53,190 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:53,190 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 09:01:53,190 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171314293] [2019-10-22 09:01:53,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:53,198 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:01:53,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:53,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:53,199 INFO L87 Difference]: Start difference. First operand 125 states and 175 transitions. Second operand 3 states. [2019-10-22 09:01:53,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:53,235 INFO L93 Difference]: Finished difference Result 239 states and 338 transitions. [2019-10-22 09:01:53,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:53,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 09:01:53,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:53,238 INFO L225 Difference]: With dead ends: 239 [2019-10-22 09:01:53,241 INFO L226 Difference]: Without dead ends: 125 [2019-10-22 09:01:53,242 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:53,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-22 09:01:53,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-10-22 09:01:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-22 09:01:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 174 transitions. [2019-10-22 09:01:53,251 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 174 transitions. Word has length 19 [2019-10-22 09:01:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:53,252 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 174 transitions. [2019-10-22 09:01:53,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:53,252 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 174 transitions. [2019-10-22 09:01:53,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 09:01:53,253 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:53,253 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:53,455 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 09:01:53,456 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:53,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:53,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1139099466, now seen corresponding path program 1 times [2019-10-22 09:01:53,457 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:53,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82658120] [2019-10-22 09:01:53,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ca2ea81-9da4-4521-bbff-455ade387f4e/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 [2019-10-22 09:01:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:53,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 28 conjunts are in the unsatisfiable core [2019-10-22 09:01:53,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:54,078 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:01:54,473 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 09:01:54,474 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 09:01:54,478 INFO L168 Benchmark]: Toolchain (without parser) took 39681.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 951.0 MB in the beginning and 919.1 MB in the end (delta: 31.9 MB). Peak memory consumption was 167.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:54,479 INFO L168 Benchmark]: CDTParser took 0.15 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. [2019-10-22 09:01:54,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:54,481 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.44 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. [2019-10-22 09:01:54,481 INFO L168 Benchmark]: Boogie Preprocessor took 60.87 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:54,481 INFO L168 Benchmark]: RCFGBuilder took 36560.52 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: 78.1 MB). Peak memory consumption was 78.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:54,482 INFO L168 Benchmark]: TraceAbstraction took 2495.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 919.1 MB in the end (delta: 107.7 MB). Peak memory consumption was 107.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:54,485 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 498.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.44 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 60.87 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 36560.52 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: 78.1 MB). Peak memory consumption was 78.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2495.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 919.1 MB in the end (delta: 107.7 MB). Peak memory consumption was 107.7 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...