./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.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_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/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 7437f00c34877da3eeb70986d6a7f4bae4c9669a ................................................................................................................................................................................................................................................................................................................................. 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_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/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 7437f00c34877da3eeb70986d6a7f4bae4c9669a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:58:20,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:58:20,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:58:20,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:58:20,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:58:20,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:58:20,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:58:20,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:58:20,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:58:20,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:58:20,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:58:20,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:58:20,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:58:20,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:58:20,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:58:20,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:58:20,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:58:20,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:58:20,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:58:20,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:58:20,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:58:20,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:58:20,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:58:20,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:58:20,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:58:20,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:58:20,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:58:20,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:58:20,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:58:20,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:58:20,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:58:20,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:58:20,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:58:20,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:58:20,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:58:20,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:58:20,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:58:20,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:58:20,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:58:20,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:58:20,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:58:20,775 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:58:20,787 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:58:20,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:58:20,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:58:20,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:58:20,788 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:58:20,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:58:20,789 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:58:20,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:58:20,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:58:20,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:58:20,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:58:20,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:58:20,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:58:20,790 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:58:20,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:58:20,791 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:58:20,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:58:20,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:58:20,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:58:20,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:58:20,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:58:20,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:58:20,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:58:20,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:58:20,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:58:20,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:58:20,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:58:20,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:58:20,793 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_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/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 -> 7437f00c34877da3eeb70986d6a7f4bae4c9669a [2019-11-15 20:58:20,818 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:58:20,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:58:20,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:58:20,832 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:58:20,833 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:58:20,833 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2019-11-15 20:58:20,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/data/b04d00e94/d5d85e8efea643058de65721c310e05a/FLAG119b3bbdc [2019-11-15 20:58:21,320 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:58:21,321 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2019-11-15 20:58:21,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/data/b04d00e94/d5d85e8efea643058de65721c310e05a/FLAG119b3bbdc [2019-11-15 20:58:21,346 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/data/b04d00e94/d5d85e8efea643058de65721c310e05a [2019-11-15 20:58:21,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:58:21,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:58:21,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:58:21,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:58:21,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:58:21,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:58:21" (1/1) ... [2019-11-15 20:58:21,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30af59e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21, skipping insertion in model container [2019-11-15 20:58:21,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:58:21" (1/1) ... [2019-11-15 20:58:21,371 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:58:21,411 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:58:21,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:21,785 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:58:21,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:21,912 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:58:21,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21 WrapperNode [2019-11-15 20:58:21,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:58:21,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:58:21,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:58:21,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:58:21,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21" (1/1) ... [2019-11-15 20:58:21,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21" (1/1) ... [2019-11-15 20:58:21,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:58:21,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:58:21,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:58:21,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:58:22,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21" (1/1) ... [2019-11-15 20:58:22,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21" (1/1) ... [2019-11-15 20:58:22,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21" (1/1) ... [2019-11-15 20:58:22,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21" (1/1) ... [2019-11-15 20:58:22,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21" (1/1) ... [2019-11-15 20:58:22,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21" (1/1) ... [2019-11-15 20:58:22,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21" (1/1) ... [2019-11-15 20:58:22,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:58:22,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:58:22,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:58:22,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:58:22,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/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 20:58:22,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:58:22,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 20:58:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:58:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 20:58:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:58:22,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:58:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:58:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 20:58:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:58:22,951 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:58:22,952 INFO L284 CfgBuilder]: Removed 50 assume(true) statements. [2019-11-15 20:58:22,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:22 BoogieIcfgContainer [2019-11-15 20:58:22,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:58:22,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:58:22,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:58:22,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:58:22,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:58:21" (1/3) ... [2019-11-15 20:58:22,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f318f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:58:22, skipping insertion in model container [2019-11-15 20:58:22,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:21" (2/3) ... [2019-11-15 20:58:22,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f318f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:58:22, skipping insertion in model container [2019-11-15 20:58:22,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:22" (3/3) ... [2019-11-15 20:58:22,959 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2019-11-15 20:58:22,968 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:58:22,974 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:58:22,983 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:58:23,004 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:58:23,004 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:58:23,004 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:58:23,004 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:58:23,005 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:58:23,005 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:58:23,005 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:58:23,005 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:58:23,021 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-11-15 20:58:23,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 20:58:23,027 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:58:23,027 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:58:23,029 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:58:23,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:58:23,034 INFO L82 PathProgramCache]: Analyzing trace with hash 2082511170, now seen corresponding path program 1 times [2019-11-15 20:58:23,040 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:58:23,041 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558794880] [2019-11-15 20:58:23,041 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:58:23,041 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:58:23,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:58:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:58:23,166 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 20:58:23,166 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558794880] [2019-11-15 20:58:23,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:58:23,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:58:23,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985367326] [2019-11-15 20:58:23,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:58:23,171 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:58:23,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:58:23,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:58:23,185 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-11-15 20:58:23,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:58:23,214 INFO L93 Difference]: Finished difference Result 232 states and 388 transitions. [2019-11-15 20:58:23,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:58:23,215 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-11-15 20:58:23,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:58:23,226 INFO L225 Difference]: With dead ends: 232 [2019-11-15 20:58:23,226 INFO L226 Difference]: Without dead ends: 115 [2019-11-15 20:58:23,231 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 20:58:23,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-15 20:58:23,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-11-15 20:58:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-15 20:58:23,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2019-11-15 20:58:23,270 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 14 [2019-11-15 20:58:23,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:58:23,270 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2019-11-15 20:58:23,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:58:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2019-11-15 20:58:23,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 20:58:23,271 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:58:23,272 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:58:23,272 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:58:23,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:58:23,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1907166553, now seen corresponding path program 1 times [2019-11-15 20:58:23,272 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:58:23,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977963284] [2019-11-15 20:58:23,273 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:58:23,273 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:58:23,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:58:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:58:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:58:23,513 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:58:23,513 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:58:23,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:58:23 BoogieIcfgContainer [2019-11-15 20:58:23,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:58:23,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:58:23,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:58:23,556 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:58:23,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:22" (3/4) ... [2019-11-15 20:58:23,559 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:58:23,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:58:23,562 INFO L168 Benchmark]: Toolchain (without parser) took 2211.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -70.9 MB). Peak memory consumption was 70.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:23,562 INFO L168 Benchmark]: CDTParser took 0.22 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 20:58:23,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:23,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.11 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 20:58:23,564 INFO L168 Benchmark]: Boogie Preprocessor took 109.20 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 20:58:23,565 INFO L168 Benchmark]: RCFGBuilder took 861.09 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:23,565 INFO L168 Benchmark]: TraceAbstraction took 601.27 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:23,566 INFO L168 Benchmark]: Witness Printer took 4.46 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 20:58:23,569 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 562.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.11 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 109.20 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. * RCFGBuilder took 861.09 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 601.27 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.46 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: 262]: 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 bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 245. 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] [L253] double x = __VERIFIER_nondet_double(); [L254] double y = __VERIFIER_nondet_double(); [L245] return x != x; 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] isnan_double(x) || isnan_double(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] [L256] COND TRUE isnan_double(x) || isnan_double(y) [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] [L258] double res = __ieee754_atan2(y, x); [L245] return x != x; 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] [L261] COND TRUE !isnan_double(res) [L262] __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, 119 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 169 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=119occurred 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, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 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 20:58:25,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:58:25,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:58:25,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:58:25,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:58:25,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:58:25,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:58:25,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:58:25,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:58:25,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:58:25,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:58:25,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:58:25,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:58:25,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:58:25,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:58:25,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:58:25,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:58:25,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:58:25,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:58:25,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:58:25,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:58:25,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:58:25,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:58:25,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:58:25,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:58:25,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:58:25,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:58:25,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:58:25,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:58:25,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:58:25,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:58:25,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:58:25,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:58:25,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:58:25,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:58:25,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:58:25,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:58:25,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:58:25,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:58:25,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:58:25,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:58:25,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:58:25,757 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:58:25,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:58:25,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:58:25,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:58:25,768 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:58:25,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:58:25,768 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:58:25,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:58:25,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:58:25,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:58:25,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:58:25,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:58:25,770 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:58:25,770 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:58:25,770 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:58:25,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:58:25,771 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:58:25,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:58:25,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:58:25,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:58:25,772 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:58:25,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:58:25,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:58:25,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:58:25,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:58:25,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:58:25,773 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:58:25,774 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:58:25,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:58:25,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:58:25,775 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_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/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 -> 7437f00c34877da3eeb70986d6a7f4bae4c9669a [2019-11-15 20:58:25,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:58:25,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:58:25,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:58:25,830 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:58:25,831 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:58:25,831 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2019-11-15 20:58:25,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/data/c5e250fc4/a3a2259c6fcd4c858e2e15ca9ff7dad6/FLAGcaac04c0a [2019-11-15 20:58:26,305 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:58:26,309 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2019-11-15 20:58:26,317 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/data/c5e250fc4/a3a2259c6fcd4c858e2e15ca9ff7dad6/FLAGcaac04c0a [2019-11-15 20:58:26,698 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/data/c5e250fc4/a3a2259c6fcd4c858e2e15ca9ff7dad6 [2019-11-15 20:58:26,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:58:26,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:58:26,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:58:26,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:58:26,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:58:26,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:58:26" (1/1) ... [2019-11-15 20:58:26,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609c0178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:26, skipping insertion in model container [2019-11-15 20:58:26,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:58:26" (1/1) ... [2019-11-15 20:58:26,719 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:58:26,759 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:58:27,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:27,096 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:58:27,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:27,196 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:58:27,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27 WrapperNode [2019-11-15 20:58:27,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:58:27,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:58:27,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:58:27,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:58:27,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27" (1/1) ... [2019-11-15 20:58:27,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27" (1/1) ... [2019-11-15 20:58:27,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:58:27,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:58:27,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:58:27,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:58:27,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27" (1/1) ... [2019-11-15 20:58:27,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27" (1/1) ... [2019-11-15 20:58:27,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27" (1/1) ... [2019-11-15 20:58:27,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27" (1/1) ... [2019-11-15 20:58:27,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27" (1/1) ... [2019-11-15 20:58:27,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27" (1/1) ... [2019-11-15 20:58:27,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27" (1/1) ... [2019-11-15 20:58:27,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:58:27,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:58:27,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:58:27,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:58:27,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/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 20:58:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 20:58:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 20:58:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:58:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-15 20:58:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:58:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:58:27,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:58:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 20:58:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:59:07,073 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:59:07,073 INFO L284 CfgBuilder]: Removed 50 assume(true) statements. [2019-11-15 20:59:07,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:59:07 BoogieIcfgContainer [2019-11-15 20:59:07,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:59:07,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:59:07,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:59:07,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:59:07,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:58:26" (1/3) ... [2019-11-15 20:59:07,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb649d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:59:07, skipping insertion in model container [2019-11-15 20:59:07,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:27" (2/3) ... [2019-11-15 20:59:07,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb649d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:59:07, skipping insertion in model container [2019-11-15 20:59:07,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:59:07" (3/3) ... [2019-11-15 20:59:07,083 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2019-11-15 20:59:07,092 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:59:07,099 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:59:07,110 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:59:07,138 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:59:07,138 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:59:07,138 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:59:07,139 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:59:07,139 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:59:07,139 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:59:07,140 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:59:07,140 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:59:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-11-15 20:59:07,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 20:59:07,181 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:59:07,182 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:59:07,184 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:59:07,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:59:07,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2082511170, now seen corresponding path program 1 times [2019-11-15 20:59:07,207 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:59:07,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625499574] [2019-11-15 20:59:07,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/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 20:59:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:59:07,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 20:59:07,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:59:07,617 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 20:59:07,617 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:59:07,621 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 20:59:07,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625499574] [2019-11-15 20:59:07,623 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:59:07,624 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 20:59:07,624 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962475860] [2019-11-15 20:59:07,629 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:59:07,629 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:59:07,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:59:07,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:59:07,644 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-11-15 20:59:07,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:59:07,677 INFO L93 Difference]: Finished difference Result 232 states and 388 transitions. [2019-11-15 20:59:07,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:59:07,678 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-11-15 20:59:07,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:59:07,691 INFO L225 Difference]: With dead ends: 232 [2019-11-15 20:59:07,692 INFO L226 Difference]: Without dead ends: 115 [2019-11-15 20:59:07,695 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 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 20:59:07,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-15 20:59:07,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-11-15 20:59:07,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-15 20:59:07,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2019-11-15 20:59:07,743 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 14 [2019-11-15 20:59:07,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:59:07,743 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2019-11-15 20:59:07,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:59:07,744 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2019-11-15 20:59:07,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 20:59:07,745 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:59:07,745 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:59:07,967 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:59:07,967 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:59:07,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:59:07,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1907166553, now seen corresponding path program 1 times [2019-11-15 20:59:07,968 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:59:07,968 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744483349] [2019-11-15 20:59:07,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/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 20:59:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:59:08,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-15 20:59:08,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:59:08,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:08,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:09,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:59:09,409 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:59:10,957 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:11,103 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 20:59:11,104 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744483349] [2019-11-15 20:59:11,104 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:59:11,104 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-15 20:59:11,104 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535033793] [2019-11-15 20:59:11,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-15 20:59:11,106 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:59:11,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-15 20:59:11,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-15 20:59:11,107 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand 14 states. [2019-11-15 20:59:13,823 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 24 DAG size of output: 17 [2019-11-15 20:59:15,879 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 26 DAG size of output: 19 [2019-11-15 20:59:24,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:59:24,083 INFO L93 Difference]: Finished difference Result 230 states and 326 transitions. [2019-11-15 20:59:24,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 20:59:24,084 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-15 20:59:24,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:59:24,088 INFO L225 Difference]: With dead ends: 230 [2019-11-15 20:59:24,089 INFO L226 Difference]: Without dead ends: 225 [2019-11-15 20:59:24,090 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2019-11-15 20:59:24,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2019-11-15 20:59:24,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 123. [2019-11-15 20:59:24,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-11-15 20:59:24,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 172 transitions. [2019-11-15 20:59:24,109 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 172 transitions. Word has length 16 [2019-11-15 20:59:24,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:59:24,110 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 172 transitions. [2019-11-15 20:59:24,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-15 20:59:24,110 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 172 transitions. [2019-11-15 20:59:24,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 20:59:24,111 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:59:24,112 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:59:24,314 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 20:59:24,314 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:59:24,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:59:24,315 INFO L82 PathProgramCache]: Analyzing trace with hash 2144381910, now seen corresponding path program 1 times [2019-11-15 20:59:24,315 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:59:24,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757736236] [2019-11-15 20:59:24,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 20:59:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:59:24,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-15 20:59:24,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:59:24,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:25,197 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:25,494 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 20:59:25,494 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:59:26,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:26,872 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 20:59:26,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757736236] [2019-11-15 20:59:26,873 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:59:26,873 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2019-11-15 20:59:26,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103455616] [2019-11-15 20:59:26,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-15 20:59:26,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:59:26,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-15 20:59:26,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2019-11-15 20:59:26,875 INFO L87 Difference]: Start difference. First operand 123 states and 172 transitions. Second operand 13 states. [2019-11-15 20:59:30,936 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 27 DAG size of output: 17 [2019-11-15 20:59:32,941 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 29 DAG size of output: 19 [2019-11-15 20:59:45,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:59:45,527 INFO L93 Difference]: Finished difference Result 230 states and 325 transitions. [2019-11-15 20:59:45,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 20:59:45,528 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 17 [2019-11-15 20:59:45,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:59:45,536 INFO L225 Difference]: With dead ends: 230 [2019-11-15 20:59:45,536 INFO L226 Difference]: Without dead ends: 225 [2019-11-15 20:59:45,537 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2019-11-15 20:59:45,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2019-11-15 20:59:45,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 128. [2019-11-15 20:59:45,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-11-15 20:59:45,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 179 transitions. [2019-11-15 20:59:45,564 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 179 transitions. Word has length 17 [2019-11-15 20:59:45,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:59:45,565 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 179 transitions. [2019-11-15 20:59:45,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-15 20:59:45,565 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 179 transitions. [2019-11-15 20:59:45,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 20:59:45,567 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:59:45,567 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:59:45,774 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 20:59:45,775 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:59:45,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:59:45,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1759093575, now seen corresponding path program 1 times [2019-11-15 20:59:45,775 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:59:45,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144125184] [2019-11-15 20:59:45,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-15 20:59:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:59:46,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-15 20:59:46,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:59:46,121 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:46,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:46,253 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 20:59:46,254 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:59:46,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:46,600 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 20:59:46,600 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144125184] [2019-11-15 20:59:46,600 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:59:46,601 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2019-11-15 20:59:46,601 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715632025] [2019-11-15 20:59:46,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-15 20:59:46,601 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:59:46,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-15 20:59:46,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-11-15 20:59:46,602 INFO L87 Difference]: Start difference. First operand 128 states and 179 transitions. Second operand 14 states. [2019-11-15 21:00:01,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:00:01,453 INFO L93 Difference]: Finished difference Result 288 states and 398 transitions. [2019-11-15 21:00:01,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 21:00:01,902 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2019-11-15 21:00:01,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:00:01,904 INFO L225 Difference]: With dead ends: 288 [2019-11-15 21:00:01,904 INFO L226 Difference]: Without dead ends: 255 [2019-11-15 21:00:01,905 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2019-11-15 21:00:01,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2019-11-15 21:00:01,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 132. [2019-11-15 21:00:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-15 21:00:01,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 184 transitions. [2019-11-15 21:00:01,918 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 184 transitions. Word has length 21 [2019-11-15 21:00:01,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:00:01,919 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 184 transitions. [2019-11-15 21:00:01,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-15 21:00:01,919 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 184 transitions. [2019-11-15 21:00:01,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 21:00:01,921 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:00:01,921 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:00:02,122 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 21:00:02,123 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:00:02,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:00:02,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1210389367, now seen corresponding path program 1 times [2019-11-15 21:00:02,124 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 21:00:02,124 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604554538] [2019-11-15 21:00:02,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa4f5644-e8ff-4211-8c11-b6e2fccb1b77/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-15 21:00:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:00:02,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-15 21:00:02,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:00:02,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 21:00:02,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 21:00:02,780 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-15 21:00:02,781 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 21:00:02,786 INFO L168 Benchmark]: Toolchain (without parser) took 96084.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.6 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -110.2 MB). Peak memory consumption was 119.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:00:02,786 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:00:02,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 948.3 MB in the beginning and 1.2 GB in the end (delta: -214.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:00:02,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:00:02,788 INFO L168 Benchmark]: Boogie Preprocessor took 70.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-11-15 21:00:02,789 INFO L168 Benchmark]: RCFGBuilder took 39738.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 73.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:00:02,789 INFO L168 Benchmark]: TraceAbstraction took 55708.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.1 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:00:02,792 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 490.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 948.3 MB in the beginning and 1.2 GB in the end (delta: -214.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 39738.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 73.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 55708.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.1 MB). Peak memory consumption was 69.4 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...