./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.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_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/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 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 ........................................................................................................................................................................................................................................................................................................................... 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_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/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 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 ............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:22:26,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:22:26,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:22:26,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:22:26,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:22:26,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:22:26,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:22:26,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:22:26,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:22:26,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:22:26,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:22:26,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:22:26,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:22:26,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:22:26,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:22:26,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:22:26,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:22:26,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:22:26,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:22:26,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:22:26,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:22:26,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:22:26,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:22:26,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:22:26,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:22:26,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:22:26,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:22:26,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:22:26,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:22:26,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:22:26,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:22:26,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:22:26,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:22:26,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:22:26,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:22:26,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:22:26,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:22:26,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:22:26,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:22:26,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:22:26,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:22:26,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:22:26,265 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:22:26,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:22:26,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:22:26,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:22:26,278 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:22:26,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:22:26,279 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:22:26,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:22:26,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:22:26,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:22:26,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:22:26,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:22:26,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:22:26,281 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:22:26,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:22:26,281 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:22:26,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:22:26,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:22:26,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:22:26,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:22:26,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:22:26,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:22:26,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:22:26,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:22:26,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:22:26,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:22:26,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:22:26,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:22:26,287 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_c3fb3a56-1514-4b01-8292-10b1c9f9f918/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 -> 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 [2019-11-15 20:22:26,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:22:26,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:22:26,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:22:26,350 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:22:26,351 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:22:26,352 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2019-11-15 20:22:26,419 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/data/125e75db9/2524952bc83e4bc19dd6ff53485db513/FLAG319305580 [2019-11-15 20:22:26,987 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:22:26,988 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2019-11-15 20:22:26,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/data/125e75db9/2524952bc83e4bc19dd6ff53485db513/FLAG319305580 [2019-11-15 20:22:27,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/data/125e75db9/2524952bc83e4bc19dd6ff53485db513 [2019-11-15 20:22:27,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:22:27,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:22:27,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:22:27,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:22:27,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:22:27,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:22:27" (1/1) ... [2019-11-15 20:22:27,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326f0e4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27, skipping insertion in model container [2019-11-15 20:22:27,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:22:27" (1/1) ... [2019-11-15 20:22:27,366 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:22:27,395 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:22:27,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:22:27,772 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:22:27,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:22:27,867 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:22:27,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27 WrapperNode [2019-11-15 20:22:27,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:22:27,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:22:27,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:22:27,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:22:27,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27" (1/1) ... [2019-11-15 20:22:27,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27" (1/1) ... [2019-11-15 20:22:27,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:22:27,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:22:27,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:22:27,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:22:27,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27" (1/1) ... [2019-11-15 20:22:27,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27" (1/1) ... [2019-11-15 20:22:27,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27" (1/1) ... [2019-11-15 20:22:27,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27" (1/1) ... [2019-11-15 20:22:27,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27" (1/1) ... [2019-11-15 20:22:28,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27" (1/1) ... [2019-11-15 20:22:28,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27" (1/1) ... [2019-11-15 20:22:28,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:22:28,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:22:28,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:22:28,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:22:28,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:22:28,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:22:28,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 20:22:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:22:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 20:22:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:22:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:22:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:22:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 20:22:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:22:28,925 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:22:28,925 INFO L284 CfgBuilder]: Removed 44 assume(true) statements. [2019-11-15 20:22:28,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:22:28 BoogieIcfgContainer [2019-11-15 20:22:28,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:22:28,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:22:28,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:22:28,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:22:28,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:22:27" (1/3) ... [2019-11-15 20:22:28,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a2f796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:22:28, skipping insertion in model container [2019-11-15 20:22:28,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:27" (2/3) ... [2019-11-15 20:22:28,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a2f796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:22:28, skipping insertion in model container [2019-11-15 20:22:28,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:22:28" (3/3) ... [2019-11-15 20:22:28,935 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b.c [2019-11-15 20:22:28,946 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:22:28,959 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:22:28,973 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:22:29,006 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:22:29,007 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:22:29,008 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:22:29,008 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:22:29,008 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:22:29,008 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:22:29,008 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:22:29,009 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:22:29,035 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-15 20:22:29,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:22:29,043 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:29,044 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:22:29,046 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:29,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:29,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-11-15 20:22:29,061 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:29,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565988699] [2019-11-15 20:22:29,062 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:29,062 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:29,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:22:29,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:22:29,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565988699] [2019-11-15 20:22:29,295 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:22:29,296 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:22:29,296 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215648430] [2019-11-15 20:22:29,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:22:29,302 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:22:29,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:22:29,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:22:29,320 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-15 20:22:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:22:29,375 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-11-15 20:22:29,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:22:29,376 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 20:22:29,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:22:29,397 INFO L225 Difference]: With dead ends: 224 [2019-11-15 20:22:29,398 INFO L226 Difference]: Without dead ends: 110 [2019-11-15 20:22:29,402 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:22:29,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-15 20:22:29,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-15 20:22:29,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-15 20:22:29,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-11-15 20:22:29,475 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-11-15 20:22:29,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:22:29,476 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-11-15 20:22:29,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:22:29,476 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-11-15 20:22:29,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 20:22:29,479 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:22:29,479 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:22:29,479 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:22:29,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:22:29,480 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-11-15 20:22:29,480 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:22:29,480 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518035933] [2019-11-15 20:22:29,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:29,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:22:29,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:22:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:22:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:22:29,825 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:22:29,826 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:22:29,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:22:29 BoogieIcfgContainer [2019-11-15 20:22:29,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:22:29,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:22:29,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:22:29,870 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:22:29,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:22:28" (3/4) ... [2019-11-15 20:22:29,875 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:22:29,875 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:22:29,877 INFO L168 Benchmark]: Toolchain (without parser) took 2534.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -54.3 MB). Peak memory consumption was 76.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:22:29,878 INFO L168 Benchmark]: CDTParser took 0.36 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. [2019-11-15 20:22:29,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:22:29,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:22:29,880 INFO L168 Benchmark]: Boogie Preprocessor took 63.70 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:22:29,881 INFO L168 Benchmark]: RCFGBuilder took 916.19 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: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:22:29,881 INFO L168 Benchmark]: TraceAbstraction took 941.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:22:29,882 INFO L168 Benchmark]: Witness Printer took 5.50 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. [2019-11-15 20:22:29,885 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 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 518.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.70 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 916.19 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: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 941.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.50 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: 258]: 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 257. 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] [L251] double x = -1.0 / 0.0; [L252] 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] [L254] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != -3 * 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] [L258] __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: 0.8s, 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, 0.2s 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 [2019-11-15 20:22:32,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:22:32,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:22:32,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:22:32,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:22:32,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:22:32,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:22:32,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:22:32,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:22:32,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:22:32,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:22:32,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:22:32,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:22:32,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:22:32,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:22:32,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:22:32,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:22:32,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:22:32,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:22:32,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:22:32,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:22:32,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:22:32,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:22:32,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:22:32,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:22:32,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:22:32,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:22:32,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:22:32,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:22:32,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:22:32,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:22:32,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:22:32,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:22:32,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:22:32,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:22:32,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:22:32,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:22:32,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:22:32,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:22:32,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:22:32,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:22:32,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:22:32,443 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:22:32,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:22:32,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:22:32,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:22:32,445 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:22:32,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:22:32,445 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:22:32,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:22:32,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:22:32,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:22:32,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:22:32,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:22:32,447 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:22:32,447 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:22:32,448 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:22:32,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:22:32,448 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:22:32,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:22:32,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:22:32,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:22:32,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:22:32,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:22:32,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:22:32,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:22:32,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:22:32,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:22:32,451 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:22:32,451 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:22:32,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:22:32,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:22:32,452 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/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 -> 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 [2019-11-15 20:22:32,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:22:32,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:22:32,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:22:32,504 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:22:32,505 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:22:32,506 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2019-11-15 20:22:32,569 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/data/59a36b87a/94804ded33084fae869c1250a25c3f9a/FLAGf0cbe111f [2019-11-15 20:22:33,037 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:22:33,038 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2019-11-15 20:22:33,047 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/data/59a36b87a/94804ded33084fae869c1250a25c3f9a/FLAGf0cbe111f [2019-11-15 20:22:33,343 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/data/59a36b87a/94804ded33084fae869c1250a25c3f9a [2019-11-15 20:22:33,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:22:33,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:22:33,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:22:33,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:22:33,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:22:33,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:22:33" (1/1) ... [2019-11-15 20:22:33,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f80a314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33, skipping insertion in model container [2019-11-15 20:22:33,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:22:33" (1/1) ... [2019-11-15 20:22:33,366 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:22:33,404 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:22:33,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:22:33,786 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:22:33,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:22:33,943 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:22:33,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33 WrapperNode [2019-11-15 20:22:33,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:22:33,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:22:33,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:22:33,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:22:33,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33" (1/1) ... [2019-11-15 20:22:33,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33" (1/1) ... [2019-11-15 20:22:34,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:22:34,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:22:34,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:22:34,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:22:34,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33" (1/1) ... [2019-11-15 20:22:34,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33" (1/1) ... [2019-11-15 20:22:34,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33" (1/1) ... [2019-11-15 20:22:34,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33" (1/1) ... [2019-11-15 20:22:34,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33" (1/1) ... [2019-11-15 20:22:34,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33" (1/1) ... [2019-11-15 20:22:34,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33" (1/1) ... [2019-11-15 20:22:34,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:22:34,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:22:34,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:22:34,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:22:34,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:22:34,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 20:22:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 20:22:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:22:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-15 20:22:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:22:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:22:34,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:22:34,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 20:22:34,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:23:14,634 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:23:14,635 INFO L284 CfgBuilder]: Removed 44 assume(true) statements. [2019-11-15 20:23:14,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:23:14 BoogieIcfgContainer [2019-11-15 20:23:14,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:23:14,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:23:14,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:23:14,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:23:14,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:22:33" (1/3) ... [2019-11-15 20:23:14,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422982a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:23:14, skipping insertion in model container [2019-11-15 20:23:14,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:22:33" (2/3) ... [2019-11-15 20:23:14,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422982a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:23:14, skipping insertion in model container [2019-11-15 20:23:14,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:23:14" (3/3) ... [2019-11-15 20:23:14,644 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b.c [2019-11-15 20:23:14,654 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:23:14,661 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:23:14,670 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:23:14,693 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:23:14,693 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:23:14,694 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:23:14,694 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:23:14,694 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:23:14,694 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:23:14,695 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:23:14,695 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:23:14,713 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-15 20:23:14,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:23:14,719 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:23:14,720 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:23:14,721 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:23:14,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:23:14,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-11-15 20:23:14,740 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:23:14,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023709474] [2019-11-15 20:23:14,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 20:23:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:23:15,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 20:23:15,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:23:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:23:15,256 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:23:15,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:23:15,262 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023709474] [2019-11-15 20:23:15,262 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:23:15,263 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 20:23:15,263 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725391734] [2019-11-15 20:23:15,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:23:15,267 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:23:15,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:23:15,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:23:15,281 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-15 20:23:15,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:23:15,313 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-11-15 20:23:15,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:23:15,315 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 20:23:15,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:23:15,327 INFO L225 Difference]: With dead ends: 224 [2019-11-15 20:23:15,327 INFO L226 Difference]: Without dead ends: 110 [2019-11-15 20:23:15,331 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 [2019-11-15 20:23:15,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-15 20:23:15,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-15 20:23:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-15 20:23:15,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-11-15 20:23:15,377 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-11-15 20:23:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:23:15,378 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-11-15 20:23:15,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:23:15,378 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-11-15 20:23:15,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 20:23:15,379 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:23:15,379 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:23:15,594 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:23:15,595 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:23:15,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:23:15,596 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-11-15 20:23:15,597 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:23:15,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854166458] [2019-11-15 20:23:15,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3fb3a56-1514-4b01-8292-10b1c9f9f918/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 20:23:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:23:16,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-15 20:23:16,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:23:16,561 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 20:23:16,562 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 20:23:16,567 INFO L168 Benchmark]: Toolchain (without parser) took 43219.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.4 MB in the beginning and 989.8 MB in the end (delta: -37.4 MB). Peak memory consumption was 104.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:23:16,568 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:23:16,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 595.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:23:16,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:23:16,571 INFO L168 Benchmark]: Boogie Preprocessor took 142.87 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:23:16,572 INFO L168 Benchmark]: RCFGBuilder took 40422.14 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: 70.9 MB). Peak memory consumption was 70.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:23:16,586 INFO L168 Benchmark]: TraceAbstraction took 1927.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 989.8 MB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:23:16,590 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 595.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 118.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 142.87 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 40422.14 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: 70.9 MB). Peak memory consumption was 70.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1927.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 989.8 MB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...