./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0686b.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_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0686b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/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 f884ccf2da0c4c4f4df1be4e75875f554c398438 ........................................................................................................................................................................................................................................................................................................................... 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_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0686b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/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 f884ccf2da0c4c4f4df1be4e75875f554c398438 ............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:28:53,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:28:53,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:28:53,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:28:53,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:28:53,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:28:53,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:28:53,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:28:53,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:28:53,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:28:53,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:28:53,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:28:53,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:28:53,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:28:53,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:28:53,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:28:53,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:28:53,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:28:53,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:28:53,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:28:53,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:28:53,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:28:53,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:28:53,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:28:53,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:28:53,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:28:53,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:28:53,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:28:53,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:28:53,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:28:53,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:28:53,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:28:53,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:28:53,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:28:53,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:28:53,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:28:53,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:28:53,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:28:53,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:28:53,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:28:53,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:28:53,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:28:53,197 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:28:53,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:28:53,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:28:53,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:28:53,208 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:28:53,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:28:53,208 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:28:53,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:28:53,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:28:53,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:28:53,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:28:53,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:28:53,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:28:53,210 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:28:53,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:28:53,210 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:28:53,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:28:53,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:28:53,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:28:53,211 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:28:53,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:28:53,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:28:53,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:28:53,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:28:53,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:28:53,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:28:53,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:28:53,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:28:53,213 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_c301e406-0d4a-45d1-9348-7162f715269c/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 -> f884ccf2da0c4c4f4df1be4e75875f554c398438 [2019-11-15 22:28:53,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:28:53,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:28:53,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:28:53,257 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:28:53,257 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:28:53,258 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0686b.c [2019-11-15 22:28:53,313 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/data/ec77a8da3/ef582b33624d4204b3e2e330bad9784d/FLAG0e8724620 [2019-11-15 22:28:53,757 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:28:53,757 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/sv-benchmarks/c/float-newlib/double_req_bl_0686b.c [2019-11-15 22:28:53,767 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/data/ec77a8da3/ef582b33624d4204b3e2e330bad9784d/FLAG0e8724620 [2019-11-15 22:28:54,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/data/ec77a8da3/ef582b33624d4204b3e2e330bad9784d [2019-11-15 22:28:54,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:28:54,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:28:54,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:28:54,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:28:54,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:28:54,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:28:54" (1/1) ... [2019-11-15 22:28:54,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4397ca16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54, skipping insertion in model container [2019-11-15 22:28:54,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:28:54" (1/1) ... [2019-11-15 22:28:54,148 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:28:54,178 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:28:54,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:28:54,470 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:28:54,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:28:54,555 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:28:54,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54 WrapperNode [2019-11-15 22:28:54,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:28:54,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:28:54,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:28:54,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:28:54,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54" (1/1) ... [2019-11-15 22:28:54,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54" (1/1) ... [2019-11-15 22:28:54,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:28:54,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:28:54,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:28:54,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:28:54,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54" (1/1) ... [2019-11-15 22:28:54,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54" (1/1) ... [2019-11-15 22:28:54,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54" (1/1) ... [2019-11-15 22:28:54,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54" (1/1) ... [2019-11-15 22:28:54,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54" (1/1) ... [2019-11-15 22:28:54,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54" (1/1) ... [2019-11-15 22:28:54,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54" (1/1) ... [2019-11-15 22:28:54,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:28:54,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:28:54,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:28:54,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:28:54,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:28:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:28:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 22:28:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:28:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 22:28:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:28:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:28:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:28:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 22:28:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:28:55,560 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:28:55,560 INFO L284 CfgBuilder]: Removed 44 assume(true) statements. [2019-11-15 22:28:55,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:28:55 BoogieIcfgContainer [2019-11-15 22:28:55,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:28:55,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:28:55,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:28:55,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:28:55,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:28:54" (1/3) ... [2019-11-15 22:28:55,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fd1261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:28:55, skipping insertion in model container [2019-11-15 22:28:55,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:54" (2/3) ... [2019-11-15 22:28:55,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fd1261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:28:55, skipping insertion in model container [2019-11-15 22:28:55,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:28:55" (3/3) ... [2019-11-15 22:28:55,569 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686b.c [2019-11-15 22:28:55,578 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:28:55,585 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:28:55,595 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:28:55,618 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:28:55,618 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:28:55,618 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:28:55,618 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:28:55,618 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:28:55,618 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:28:55,618 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:28:55,619 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:28:55,634 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-15 22:28:55,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:28:55,641 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:28:55,641 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:28:55,643 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:28:55,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:28:55,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-11-15 22:28:55,656 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:28:55,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708409385] [2019-11-15 22:28:55,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:28:55,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:28:55,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:28:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:28:55,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:28:55,780 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708409385] [2019-11-15 22:28:55,781 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:28:55,781 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:28:55,781 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500366567] [2019-11-15 22:28:55,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:28:55,785 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:28:55,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:28:55,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:28:55,800 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-15 22:28:55,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:28:55,828 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-11-15 22:28:55,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:28:55,829 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 22:28:55,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:28:55,840 INFO L225 Difference]: With dead ends: 224 [2019-11-15 22:28:55,840 INFO L226 Difference]: Without dead ends: 110 [2019-11-15 22:28:55,843 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:28:55,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-15 22:28:55,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-15 22:28:55,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-15 22:28:55,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-11-15 22:28:55,880 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-11-15 22:28:55,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:28:55,881 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-11-15 22:28:55,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:28:55,881 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-11-15 22:28:55,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 22:28:55,882 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:28:55,882 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:28:55,882 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:28:55,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:28:55,883 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-11-15 22:28:55,883 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:28:55,883 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137505073] [2019-11-15 22:28:55,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:28:55,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:28:55,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:28:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:28:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:28:56,139 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:28:56,139 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:28:56,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:28:56 BoogieIcfgContainer [2019-11-15 22:28:56,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:28:56,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:28:56,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:28:56,204 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:28:56,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:28:55" (3/4) ... [2019-11-15 22:28:56,207 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:28:56,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:28:56,210 INFO L168 Benchmark]: Toolchain (without parser) took 2077.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -74.8 MB). Peak memory consumption was 66.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:56,210 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:28:56,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:56,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:56,213 INFO L168 Benchmark]: Boogie Preprocessor took 82.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:28:56,213 INFO L168 Benchmark]: RCFGBuilder took 857.43 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: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:56,214 INFO L168 Benchmark]: TraceAbstraction took 639.85 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:56,214 INFO L168 Benchmark]: Witness Printer took 4.17 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 22:28:56,222 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 424.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.69 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 82.72 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 857.43 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: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 639.85 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.17 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: 0.5s, 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 [2019-11-15 22:28:58,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:28:58,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:28:58,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:28:58,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:28:58,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:28:58,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:28:58,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:28:58,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:28:58,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:28:58,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:28:58,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:28:58,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:28:58,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:28:58,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:28:58,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:28:58,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:28:58,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:28:58,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:28:58,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:28:58,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:28:58,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:28:58,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:28:58,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:28:58,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:28:58,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:28:58,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:28:58,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:28:58,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:28:58,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:28:58,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:28:58,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:28:58,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:28:58,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:28:58,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:28:58,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:28:58,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:28:58,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:28:58,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:28:58,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:28:58,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:28:58,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:28:58,345 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:28:58,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:28:58,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:28:58,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:28:58,347 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:28:58,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:28:58,348 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:28:58,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:28:58,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:28:58,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:28:58,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:28:58,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:28:58,349 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:28:58,349 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:28:58,350 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:28:58,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:28:58,350 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:28:58,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:28:58,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:28:58,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:28:58,351 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:28:58,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:28:58,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:28:58,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:28:58,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:28:58,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:28:58,352 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:28:58,352 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:28:58,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:28:58,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:28:58,353 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_c301e406-0d4a-45d1-9348-7162f715269c/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 -> f884ccf2da0c4c4f4df1be4e75875f554c398438 [2019-11-15 22:28:58,382 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:28:58,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:28:58,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:28:58,406 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:28:58,407 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:28:58,408 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0686b.c [2019-11-15 22:28:58,470 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/data/774a203fe/3dd2b76b27ef4715950481c81a4ae2f0/FLAG4fb26ddbd [2019-11-15 22:28:58,920 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:28:58,921 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/sv-benchmarks/c/float-newlib/double_req_bl_0686b.c [2019-11-15 22:28:58,928 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/data/774a203fe/3dd2b76b27ef4715950481c81a4ae2f0/FLAG4fb26ddbd [2019-11-15 22:28:59,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/data/774a203fe/3dd2b76b27ef4715950481c81a4ae2f0 [2019-11-15 22:28:59,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:28:59,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:28:59,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:28:59,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:28:59,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:28:59,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:28:59" (1/1) ... [2019-11-15 22:28:59,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c15fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59, skipping insertion in model container [2019-11-15 22:28:59,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:28:59" (1/1) ... [2019-11-15 22:28:59,258 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:28:59,286 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:28:59,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:28:59,595 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:28:59,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:28:59,748 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:28:59,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59 WrapperNode [2019-11-15 22:28:59,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:28:59,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:28:59,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:28:59,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:28:59,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59" (1/1) ... [2019-11-15 22:28:59,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59" (1/1) ... [2019-11-15 22:28:59,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:28:59,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:28:59,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:28:59,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:28:59,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59" (1/1) ... [2019-11-15 22:28:59,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59" (1/1) ... [2019-11-15 22:28:59,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59" (1/1) ... [2019-11-15 22:28:59,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59" (1/1) ... [2019-11-15 22:28:59,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59" (1/1) ... [2019-11-15 22:28:59,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59" (1/1) ... [2019-11-15 22:28:59,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59" (1/1) ... [2019-11-15 22:28:59,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:28:59,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:28:59,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:28:59,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:28:59,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:28:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 22:28:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 22:28:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:28:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-15 22:28:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 22:28:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:28:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:28:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 22:28:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:29:39,323 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:29:39,324 INFO L284 CfgBuilder]: Removed 44 assume(true) statements. [2019-11-15 22:29:39,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:29:39 BoogieIcfgContainer [2019-11-15 22:29:39,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:29:39,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:29:39,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:29:39,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:29:39,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:28:59" (1/3) ... [2019-11-15 22:29:39,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579f090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:29:39, skipping insertion in model container [2019-11-15 22:29:39,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:59" (2/3) ... [2019-11-15 22:29:39,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579f090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:29:39, skipping insertion in model container [2019-11-15 22:29:39,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:29:39" (3/3) ... [2019-11-15 22:29:39,333 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686b.c [2019-11-15 22:29:39,342 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:29:39,349 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:29:39,359 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:29:39,382 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:29:39,383 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:29:39,383 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:29:39,383 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:29:39,384 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:29:39,384 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:29:39,384 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:29:39,384 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:29:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-15 22:29:39,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:29:39,406 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:29:39,407 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:29:39,409 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:29:39,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:29:39,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-11-15 22:29:39,425 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:29:39,426 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799525865] [2019-11-15 22:29:39,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 22:29:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:29:39,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 22:29:39,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:29:39,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:29:39,832 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:29:39,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:29:39,837 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799525865] [2019-11-15 22:29:39,837 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:29:39,838 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 22:29:39,838 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105261924] [2019-11-15 22:29:39,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:29:39,843 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:29:39,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:29:39,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:29:39,858 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-15 22:29:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:29:39,887 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-11-15 22:29:39,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:29:39,889 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 22:29:39,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:29:39,900 INFO L225 Difference]: With dead ends: 224 [2019-11-15 22:29:39,901 INFO L226 Difference]: Without dead ends: 110 [2019-11-15 22:29:39,904 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 22:29:39,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-15 22:29:39,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-15 22:29:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-15 22:29:39,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-11-15 22:29:39,947 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-11-15 22:29:39,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:29:39,947 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-11-15 22:29:39,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:29:39,948 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-11-15 22:29:39,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 22:29:39,949 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:29:39,949 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:29:40,153 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:29:40,153 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:29:40,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:29:40,154 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-11-15 22:29:40,155 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:29:40,155 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428935800] [2019-11-15 22:29:40,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c301e406-0d4a-45d1-9348-7162f715269c/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 22:29:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:29:40,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-15 22:29:40,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:29:40,913 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 22:29:40,914 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 22:29:40,937 INFO L168 Benchmark]: Toolchain (without parser) took 41676.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 952.4 MB in the beginning and 998.0 MB in the end (delta: -45.6 MB). Peak memory consumption was 111.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:29:40,938 INFO L168 Benchmark]: CDTParser took 0.27 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 22:29:40,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:29:40,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.65 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. [2019-11-15 22:29:40,942 INFO L168 Benchmark]: Boogie Preprocessor took 85.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:29:40,943 INFO L168 Benchmark]: RCFGBuilder took 39416.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:29:40,944 INFO L168 Benchmark]: TraceAbstraction took 1592.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.0 MB in the end (delta: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:29:40,949 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 504.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 39416.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1592.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.0 MB in the end (delta: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...