./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/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 6325aa1d97dea13f4033dc32ee324acae8808fcc ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/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 6325aa1d97dea13f4033dc32ee324acae8808fcc .............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:30:48,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:30:48,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:30:48,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:30:48,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:30:48,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:30:48,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:30:48,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:30:48,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:30:48,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:30:48,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:30:48,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:30:48,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:30:48,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:30:48,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:30:48,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:30:48,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:30:48,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:30:48,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:30:48,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:30:48,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:30:48,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:30:48,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:30:48,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:30:48,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:30:48,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:30:48,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:30:48,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:30:48,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:30:48,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:30:48,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:30:48,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:30:48,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:30:48,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:30:48,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:30:48,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:30:48,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:30:48,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:30:48,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:30:48,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:30:48,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:30:48,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:30:48,510 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:30:48,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:30:48,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:30:48,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:30:48,516 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:30:48,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:30:48,517 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:30:48,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:30:48,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:30:48,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:30:48,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:30:48,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:30:48,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:30:48,520 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:30:48,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:30:48,521 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:30:48,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:30:48,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:30:48,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:30:48,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:30:48,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:30:48,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:30:48,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:30:48,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:30:48,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:30:48,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:30:48,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:30:48,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:30:48,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/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 -> 6325aa1d97dea13f4033dc32ee324acae8808fcc [2019-11-16 00:30:48,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:30:48,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:30:48,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:30:48,582 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:30:48,582 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:30:48,583 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2019-11-16 00:30:48,645 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/data/e88161742/10997bd10dbd4e62a4657707f4d54b70/FLAG3d756ce27 [2019-11-16 00:30:49,124 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:30:49,124 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2019-11-16 00:30:49,134 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/data/e88161742/10997bd10dbd4e62a4657707f4d54b70/FLAG3d756ce27 [2019-11-16 00:30:49,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/data/e88161742/10997bd10dbd4e62a4657707f4d54b70 [2019-11-16 00:30:49,414 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:30:49,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:30:49,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:30:49,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:30:49,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:30:49,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:49" (1/1) ... [2019-11-16 00:30:49,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3854c2a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49, skipping insertion in model container [2019-11-16 00:30:49,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:49" (1/1) ... [2019-11-16 00:30:49,436 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:30:49,467 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:30:49,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:30:49,789 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:30:49,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:30:49,903 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:30:49,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49 WrapperNode [2019-11-16 00:30:49,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:30:49,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:30:49,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:30:49,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:30:49,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49" (1/1) ... [2019-11-16 00:30:49,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49" (1/1) ... [2019-11-16 00:30:49,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:30:49,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:30:49,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:30:49,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:30:50,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49" (1/1) ... [2019-11-16 00:30:50,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49" (1/1) ... [2019-11-16 00:30:50,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49" (1/1) ... [2019-11-16 00:30:50,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49" (1/1) ... [2019-11-16 00:30:50,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49" (1/1) ... [2019-11-16 00:30:50,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49" (1/1) ... [2019-11-16 00:30:50,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49" (1/1) ... [2019-11-16 00:30:50,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:30:50,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:30:50,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:30:50,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:30:50,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:30:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:30:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-16 00:30:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:30:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-16 00:30:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:30:50,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:30:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:30:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-16 00:30:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:30:51,309 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:30:51,309 INFO L284 CfgBuilder]: Removed 44 assume(true) statements. [2019-11-16 00:30:51,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:51 BoogieIcfgContainer [2019-11-16 00:30:51,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:30:51,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:30:51,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:30:51,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:30:51,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:30:49" (1/3) ... [2019-11-16 00:30:51,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb3418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:51, skipping insertion in model container [2019-11-16 00:30:51,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:49" (2/3) ... [2019-11-16 00:30:51,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb3418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:51, skipping insertion in model container [2019-11-16 00:30:51,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:51" (3/3) ... [2019-11-16 00:30:51,319 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a.c [2019-11-16 00:30:51,328 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:30:51,336 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:30:51,346 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:30:51,371 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:30:51,371 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:30:51,372 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:30:51,372 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:30:51,372 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:30:51,372 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:30:51,372 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:30:51,372 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:30:51,391 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-16 00:30:51,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:30:51,397 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:30:51,398 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:30:51,400 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:30:51,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:30:51,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-11-16 00:30:51,413 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:30:51,413 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914244286] [2019-11-16 00:30:51,414 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:51,414 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:51,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:30:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:30:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:30:51,569 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914244286] [2019-11-16 00:30:51,570 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:30:51,570 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:30:51,570 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205592317] [2019-11-16 00:30:51,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:30:51,575 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:30:51,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:30:51,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:30:51,589 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-16 00:30:51,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:30:51,620 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-11-16 00:30:51,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:30:51,622 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-16 00:30:51,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:30:51,636 INFO L225 Difference]: With dead ends: 224 [2019-11-16 00:30:51,636 INFO L226 Difference]: Without dead ends: 110 [2019-11-16 00:30:51,640 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:30:51,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-16 00:30:51,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-16 00:30:51,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-16 00:30:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-11-16 00:30:51,693 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-11-16 00:30:51,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:30:51,694 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-11-16 00:30:51,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:30:51,694 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-11-16 00:30:51,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-16 00:30:51,695 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:30:51,695 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:30:51,695 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:30:51,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:30:51,696 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-11-16 00:30:51,696 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:30:51,696 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223732745] [2019-11-16 00:30:51,697 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:51,697 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:51,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:30:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:30:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:30:52,033 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:30:52,033 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:30:52,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:30:52 BoogieIcfgContainer [2019-11-16 00:30:52,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:30:52,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:30:52,118 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:30:52,118 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:30:52,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:51" (3/4) ... [2019-11-16 00:30:52,122 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:30:52,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:30:52,126 INFO L168 Benchmark]: Toolchain (without parser) took 2708.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -78.3 MB). Peak memory consumption was 64.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:52,126 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:30:52,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:52,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:52,130 INFO L168 Benchmark]: Boogie Preprocessor took 92.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:30:52,131 INFO L168 Benchmark]: RCFGBuilder took 1228.57 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:52,132 INFO L168 Benchmark]: TraceAbstraction took 804.72 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: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:52,133 INFO L168 Benchmark]: Witness Printer took 6.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:30:52,142 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 485.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 84.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 92.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1228.57 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 804.72 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: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. * Witness Printer took 6.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 256]: 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 255. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L250] double x = 1.0 / 0.0; [L251] double y = 1.0 / 0.0; [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L253] double res = __ieee754_atan2(y, x); [L255] COND TRUE res != pi_o_4 VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L256] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-16 00:30:54,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:30:54,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:30:54,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:30:54,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:30:54,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:30:54,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:30:54,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:30:54,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:30:54,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:30:54,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:30:54,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:30:54,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:30:54,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:30:54,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:30:54,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:30:54,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:30:54,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:30:54,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:30:54,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:30:54,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:30:54,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:30:54,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:30:54,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:30:54,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:30:54,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:30:54,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:30:54,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:30:54,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:30:54,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:30:54,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:30:54,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:30:54,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:30:54,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:30:54,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:30:54,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:30:54,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:30:54,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:30:54,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:30:54,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:30:54,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:30:54,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:30:54,915 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:30:54,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:30:54,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:30:54,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:30:54,928 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:30:54,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:30:54,928 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:30:54,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:30:54,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:30:54,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:30:54,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:30:54,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:30:54,930 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:30:54,930 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:30:54,930 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:30:54,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:30:54,931 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:30:54,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:30:54,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:30:54,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:30:54,932 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:30:54,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:30:54,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:30:54,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:30:54,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:30:54,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:30:54,934 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:30:54,934 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:30:54,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:30:54,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:30:54,938 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/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 -> 6325aa1d97dea13f4033dc32ee324acae8808fcc [2019-11-16 00:30:54,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:30:54,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:30:54,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:30:54,998 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:30:54,999 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:30:55,000 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2019-11-16 00:30:55,062 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/data/fe1dbbd67/ca32ee003cc14fe78d2705c31009fdfc/FLAG3169f4946 [2019-11-16 00:30:55,551 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:30:55,552 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2019-11-16 00:30:55,566 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/data/fe1dbbd67/ca32ee003cc14fe78d2705c31009fdfc/FLAG3169f4946 [2019-11-16 00:30:55,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/data/fe1dbbd67/ca32ee003cc14fe78d2705c31009fdfc [2019-11-16 00:30:55,877 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:30:55,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:30:55,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:30:55,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:30:55,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:30:55,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:55" (1/1) ... [2019-11-16 00:30:55,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131b8548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:55, skipping insertion in model container [2019-11-16 00:30:55,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:55" (1/1) ... [2019-11-16 00:30:55,897 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:30:55,926 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:30:56,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:30:56,292 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:30:56,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:30:56,419 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:30:56,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56 WrapperNode [2019-11-16 00:30:56,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:30:56,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:30:56,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:30:56,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:30:56,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56" (1/1) ... [2019-11-16 00:30:56,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56" (1/1) ... [2019-11-16 00:30:56,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:30:56,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:30:56,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:30:56,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:30:56,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56" (1/1) ... [2019-11-16 00:30:56,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56" (1/1) ... [2019-11-16 00:30:56,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56" (1/1) ... [2019-11-16 00:30:56,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56" (1/1) ... [2019-11-16 00:30:56,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56" (1/1) ... [2019-11-16 00:30:56,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56" (1/1) ... [2019-11-16 00:30:56,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56" (1/1) ... [2019-11-16 00:30:56,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:30:56,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:30:56,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:30:56,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:30:56,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:30:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-16 00:30:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-16 00:30:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:30:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-16 00:30:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-16 00:30:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:30:56,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:30:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:30:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:31:37,512 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:31:37,512 INFO L284 CfgBuilder]: Removed 44 assume(true) statements. [2019-11-16 00:31:37,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:31:37 BoogieIcfgContainer [2019-11-16 00:31:37,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:31:37,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:31:37,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:31:37,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:31:37,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:30:55" (1/3) ... [2019-11-16 00:31:37,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4185ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:31:37, skipping insertion in model container [2019-11-16 00:31:37,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:56" (2/3) ... [2019-11-16 00:31:37,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4185ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:31:37, skipping insertion in model container [2019-11-16 00:31:37,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:31:37" (3/3) ... [2019-11-16 00:31:37,523 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a.c [2019-11-16 00:31:37,534 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:31:37,544 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:31:37,557 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:31:37,594 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:31:37,594 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:31:37,595 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:31:37,595 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:31:37,595 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:31:37,595 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:31:37,596 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:31:37,596 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:31:37,625 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-16 00:31:37,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:31:37,634 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:31:37,635 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:31:37,637 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:31:37,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:31:37,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-11-16 00:31:37,652 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:31:37,652 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758742166] [2019-11-16 00:31:37,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-16 00:31:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:31:38,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-16 00:31:38,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:31:38,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:31:38,094 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:31:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:31:38,099 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758742166] [2019-11-16 00:31:38,099 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:31:38,099 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-16 00:31:38,100 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043295381] [2019-11-16 00:31:38,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:31:38,104 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:31:38,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:31:38,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:31:38,117 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-16 00:31:38,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:31:38,152 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-11-16 00:31:38,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:31:38,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-16 00:31:38,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:31:38,169 INFO L225 Difference]: With dead ends: 224 [2019-11-16 00:31:38,170 INFO L226 Difference]: Without dead ends: 110 [2019-11-16 00:31:38,174 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:31:38,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-16 00:31:38,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-16 00:31:38,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-16 00:31:38,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-11-16 00:31:38,222 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-11-16 00:31:38,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:31:38,223 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-11-16 00:31:38,223 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:31:38,224 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-11-16 00:31:38,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-16 00:31:38,225 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:31:38,225 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:31:38,425 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:31:38,426 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:31:38,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:31:38,426 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-11-16 00:31:38,428 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:31:38,428 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836297493] [2019-11-16 00:31:38,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_985989ad-5908-4f3e-8155-538e74521ac9/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-16 00:31:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:31:39,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-16 00:31:39,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:31:39,273 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-16 00:31:39,274 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-16 00:31:39,279 INFO L168 Benchmark]: Toolchain (without parser) took 43400.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -48.7 MB). Peak memory consumption was 110.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:31:39,280 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:31:39,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:31:39,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:31:39,282 INFO L168 Benchmark]: Boogie Preprocessor took 115.36 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: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:31:39,283 INFO L168 Benchmark]: RCFGBuilder took 40888.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:31:39,284 INFO L168 Benchmark]: TraceAbstraction took 1762.64 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:31:39,288 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 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 540.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.88 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 115.36 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: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 40888.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1762.64 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: 57.0 MB). Peak memory consumption was 57.0 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...