./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/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 3077c551d2b458403e0209f5991b4e91a7b5094b .................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/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 3077c551d2b458403e0209f5991b4e91a7b5094b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 20:58:53,290 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 20:58:53,291 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 20:58:53,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 20:58:53,298 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 20:58:53,299 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 20:58:53,299 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 20:58:53,300 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 20:58:53,301 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 20:58:53,302 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 20:58:53,303 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 20:58:53,303 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 20:58:53,303 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 20:58:53,304 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 20:58:53,305 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 20:58:53,305 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 20:58:53,306 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 20:58:53,307 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 20:58:53,308 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 20:58:53,309 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 20:58:53,310 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 20:58:53,311 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 20:58:53,312 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 20:58:53,313 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 20:58:53,313 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 20:58:53,313 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 20:58:53,314 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 20:58:53,315 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 20:58:53,315 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 20:58:53,316 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 20:58:53,316 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 20:58:53,317 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 20:58:53,317 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 20:58:53,317 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 20:58:53,317 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 20:58:53,318 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 20:58:53,318 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 20:58:53,324 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 20:58:53,325 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 20:58:53,325 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 20:58:53,325 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 20:58:53,326 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 20:58:53,326 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 20:58:53,326 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 20:58:53,326 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 20:58:53,326 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 20:58:53,326 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 20:58:53,326 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 20:58:53,326 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 20:58:53,326 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 20:58:53,326 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 20:58:53,326 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 20:58:53,327 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 20:58:53,327 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 20:58:53,327 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 20:58:53,327 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 20:58:53,327 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 20:58:53,327 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 20:58:53,327 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 20:58:53,327 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 20:58:53,327 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 20:58:53,327 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 20:58:53,327 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 20:58:53,328 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 20:58:53,328 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 20:58:53,328 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 20:58:53,328 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 20:58:53,328 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/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 -> 3077c551d2b458403e0209f5991b4e91a7b5094b [2018-12-02 20:58:53,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 20:58:53,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 20:58:53,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 20:58:53,354 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 20:58:53,354 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 20:58:53,355 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c [2018-12-02 20:58:53,389 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/data/3e8740892/23aed7721c4c40d1a7d8cc97af8bfc12/FLAG567995f97 [2018-12-02 20:58:53,863 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 20:58:53,864 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c [2018-12-02 20:58:53,868 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/data/3e8740892/23aed7721c4c40d1a7d8cc97af8bfc12/FLAG567995f97 [2018-12-02 20:58:53,876 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/data/3e8740892/23aed7721c4c40d1a7d8cc97af8bfc12 [2018-12-02 20:58:53,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 20:58:53,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 20:58:53,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 20:58:53,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 20:58:53,881 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 20:58:53,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:58:53" (1/1) ... [2018-12-02 20:58:53,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92370fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:53, skipping insertion in model container [2018-12-02 20:58:53,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:58:53" (1/1) ... [2018-12-02 20:58:53,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 20:58:53,902 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 20:58:54,017 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:58:54,021 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 20:58:54,089 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:58:54,109 INFO L195 MainTranslator]: Completed translation [2018-12-02 20:58:54,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54 WrapperNode [2018-12-02 20:58:54,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 20:58:54,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 20:58:54,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 20:58:54,110 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 20:58:54,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54" (1/1) ... [2018-12-02 20:58:54,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54" (1/1) ... [2018-12-02 20:58:54,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 20:58:54,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 20:58:54,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 20:58:54,128 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 20:58:54,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54" (1/1) ... [2018-12-02 20:58:54,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54" (1/1) ... [2018-12-02 20:58:54,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54" (1/1) ... [2018-12-02 20:58:54,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54" (1/1) ... [2018-12-02 20:58:54,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54" (1/1) ... [2018-12-02 20:58:54,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54" (1/1) ... [2018-12-02 20:58:54,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54" (1/1) ... [2018-12-02 20:58:54,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 20:58:54,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 20:58:54,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 20:58:54,159 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 20:58:54,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/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 [2018-12-02 20:58:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 20:58:54,189 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 20:58:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-12-02 20:58:54,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-12-02 20:58:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 20:58:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 20:58:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-12-02 20:58:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-12-02 20:58:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 20:58:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 20:58:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 20:58:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 20:58:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-12-02 20:58:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-12-02 20:58:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 20:58:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 20:58:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 20:58:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-02 20:58:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 20:58:54,483 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 20:58:54,483 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-02 20:58:54,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:58:54 BoogieIcfgContainer [2018-12-02 20:58:54,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 20:58:54,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 20:58:54,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 20:58:54,486 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 20:58:54,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:58:53" (1/3) ... [2018-12-02 20:58:54,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3069eb07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:58:54, skipping insertion in model container [2018-12-02 20:58:54,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:54" (2/3) ... [2018-12-02 20:58:54,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3069eb07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:58:54, skipping insertion in model container [2018-12-02 20:58:54,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:58:54" (3/3) ... [2018-12-02 20:58:54,488 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660a_true-unreach-call.c [2018-12-02 20:58:54,494 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 20:58:54,499 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 20:58:54,508 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 20:58:54,525 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 20:58:54,526 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 20:58:54,526 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 20:58:54,526 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 20:58:54,526 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 20:58:54,526 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 20:58:54,526 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 20:58:54,526 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 20:58:54,526 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 20:58:54,536 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2018-12-02 20:58:54,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 20:58:54,540 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:58:54,540 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:58:54,542 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:58:54,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:58:54,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1380022172, now seen corresponding path program 1 times [2018-12-02 20:58:54,546 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:58:54,546 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:58:54,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:58:54,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:58:54,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:58:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:58:54,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:58:54,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:58:54,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 20:58:54,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 20:58:54,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 20:58:54,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 20:58:54,647 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 2 states. [2018-12-02 20:58:54,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:58:54,665 INFO L93 Difference]: Finished difference Result 197 states and 314 transitions. [2018-12-02 20:58:54,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 20:58:54,666 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-02 20:58:54,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:58:54,672 INFO L225 Difference]: With dead ends: 197 [2018-12-02 20:58:54,672 INFO L226 Difference]: Without dead ends: 98 [2018-12-02 20:58:54,674 INFO L631 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 [2018-12-02 20:58:54,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-12-02 20:58:54,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-12-02 20:58:54,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-12-02 20:58:54,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2018-12-02 20:58:54,701 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2018-12-02 20:58:54,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:58:54,701 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2018-12-02 20:58:54,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 20:58:54,701 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2018-12-02 20:58:54,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:58:54,702 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:58:54,702 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:58:54,702 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:58:54,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:58:54,702 INFO L82 PathProgramCache]: Analyzing trace with hash 959017453, now seen corresponding path program 1 times [2018-12-02 20:58:54,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 20:58:54,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 20:58:54,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:58:54,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:58:54,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:58:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:58:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:58:54,772 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 20:58:54,788 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450956 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-02 20:58:54,789 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-12-02 20:58:54,789 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450953 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-12-02 20:58:54,789 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450966 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-02 20:58:54,789 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450976 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-02 20:58:54,789 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450948 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-02 20:58:54,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:58:54 BoogieIcfgContainer [2018-12-02 20:58:54,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 20:58:54,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 20:58:54,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 20:58:54,798 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 20:58:54,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:58:54" (3/4) ... [2018-12-02 20:58:54,800 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 20:58:54,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 20:58:54,801 INFO L168 Benchmark]: Toolchain (without parser) took 922.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -67.1 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2018-12-02 20:58:54,802 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:58:54,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -160.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-12-02 20:58:54,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 20:58:54,803 INFO L168 Benchmark]: Boogie Preprocessor took 30.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 20:58:54,803 INFO L168 Benchmark]: RCFGBuilder took 325.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. [2018-12-02 20:58:54,803 INFO L168 Benchmark]: TraceAbstraction took 313.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2018-12-02 20:58:54,804 INFO L168 Benchmark]: Witness Printer took 2.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:58:54,806 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 230.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -160.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 325.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 313.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.64 ms. Allocated memory is still 1.1 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450956 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450953 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450966 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450976 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450948 could not be translated for associated CType ARRAY#_4_~DOUBLE# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 259]: 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 251, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 258. 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 [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=6442450974, \old(one_atan)=6442450961, \old(pi)=6442450969, \old(pi_lo_atan2)=6442450959, \old(pi_o_2)=6442450945, \old(pi_o_4)=6442450963, \old(tiny_atan2)=6442450975, \old(zero_atan2)=6442450952, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L250] double x = __VERIFIER_nondet_double(); [L251] double y = -0.0; VAL [aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, 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, x=6442450964, zero_atan2=0] [L253] COND TRUE x < 0.0 VAL [aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, 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, x=6442450964, zero_atan2=0] [L255] CALL, EXPR __ieee754_atan2(y, x) VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, 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] [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, 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, x=6442450964, y=6442450965, 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 [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=6442450970, 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, x=6442450964, y=6442450965, 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 [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, hy=3, lx=6442450970, ly=6442450949, 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, x=6442450964, y=6442450965, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, hy=3, lx=6442450970, ly=6442450949, 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, x=6442450964, y=6442450965, zero_atan2=0] [L255] RET, EXPR __ieee754_atan2(y, x) VAL [__ieee754_atan2(y, x)=6442450968, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, 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, x=6442450964, y=6442450965, zero_atan2=0] [L255] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != -pi VAL [aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450968, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L259] __VERIFIER_error() VAL [aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450968, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 103 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 143 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=103occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-02 20:58:56,155 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 20:58:56,156 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 20:58:56,162 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 20:58:56,162 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 20:58:56,163 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 20:58:56,163 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 20:58:56,164 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 20:58:56,165 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 20:58:56,165 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 20:58:56,166 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 20:58:56,166 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 20:58:56,166 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 20:58:56,167 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 20:58:56,167 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 20:58:56,168 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 20:58:56,168 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 20:58:56,169 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 20:58:56,170 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 20:58:56,171 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 20:58:56,171 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 20:58:56,172 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 20:58:56,173 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 20:58:56,173 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 20:58:56,173 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 20:58:56,174 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 20:58:56,174 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 20:58:56,174 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 20:58:56,175 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 20:58:56,175 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 20:58:56,175 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 20:58:56,176 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 20:58:56,176 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 20:58:56,176 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 20:58:56,176 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 20:58:56,177 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 20:58:56,177 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 20:58:56,184 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 20:58:56,184 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 20:58:56,185 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 20:58:56,185 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 20:58:56,185 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 20:58:56,185 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 20:58:56,186 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 20:58:56,186 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 20:58:56,186 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 20:58:56,186 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 20:58:56,186 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 20:58:56,186 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 20:58:56,186 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 20:58:56,186 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 20:58:56,186 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 20:58:56,186 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 20:58:56,187 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 20:58:56,187 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 20:58:56,187 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 20:58:56,187 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 20:58:56,187 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 20:58:56,187 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 20:58:56,187 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 20:58:56,187 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 20:58:56,187 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 20:58:56,187 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 20:58:56,187 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 20:58:56,188 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 20:58:56,188 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 20:58:56,188 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 20:58:56,188 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 20:58:56,188 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 20:58:56,188 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/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 -> 3077c551d2b458403e0209f5991b4e91a7b5094b [2018-12-02 20:58:56,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 20:58:56,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 20:58:56,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 20:58:56,216 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 20:58:56,216 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 20:58:56,216 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c [2018-12-02 20:58:56,250 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/data/68f039f40/2f600d62ca2647b196cd927e0fdae181/FLAGda12cb3e6 [2018-12-02 20:58:56,633 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 20:58:56,633 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c [2018-12-02 20:58:56,637 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/data/68f039f40/2f600d62ca2647b196cd927e0fdae181/FLAGda12cb3e6 [2018-12-02 20:58:56,646 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/data/68f039f40/2f600d62ca2647b196cd927e0fdae181 [2018-12-02 20:58:56,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 20:58:56,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 20:58:56,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 20:58:56,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 20:58:56,651 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 20:58:56,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:58:56" (1/1) ... [2018-12-02 20:58:56,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f98f186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56, skipping insertion in model container [2018-12-02 20:58:56,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:58:56" (1/1) ... [2018-12-02 20:58:56,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 20:58:56,672 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 20:58:56,796 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:58:56,801 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 20:58:56,838 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:58:56,856 INFO L195 MainTranslator]: Completed translation [2018-12-02 20:58:56,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56 WrapperNode [2018-12-02 20:58:56,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 20:58:56,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 20:58:56,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 20:58:56,858 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 20:58:56,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56" (1/1) ... [2018-12-02 20:58:56,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56" (1/1) ... [2018-12-02 20:58:56,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 20:58:56,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 20:58:56,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 20:58:56,908 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 20:58:56,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56" (1/1) ... [2018-12-02 20:58:56,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56" (1/1) ... [2018-12-02 20:58:56,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56" (1/1) ... [2018-12-02 20:58:56,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56" (1/1) ... [2018-12-02 20:58:56,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56" (1/1) ... [2018-12-02 20:58:56,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56" (1/1) ... [2018-12-02 20:58:56,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56" (1/1) ... [2018-12-02 20:58:56,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 20:58:56,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 20:58:56,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 20:58:56,944 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 20:58:56,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/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 [2018-12-02 20:58:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-02 20:58:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-02 20:58:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 20:58:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 20:58:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-12-02 20:58:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-12-02 20:58:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-12-02 20:58:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-12-02 20:58:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 20:58:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 20:58:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2018-12-02 20:58:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 20:58:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-12-02 20:58:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-12-02 20:58:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 20:58:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 20:58:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 20:58:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 20:58:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 20:58:57,421 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:58:57,627 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:58:57,697 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:58:57,721 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:58:58,793 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:58:58,810 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:58:58,859 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:58:58,890 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:59:04,097 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:59:14,539 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 20:59:14,540 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-02 20:59:14,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:59:14 BoogieIcfgContainer [2018-12-02 20:59:14,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 20:59:14,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 20:59:14,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 20:59:14,543 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 20:59:14,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:58:56" (1/3) ... [2018-12-02 20:59:14,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da5c7d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:59:14, skipping insertion in model container [2018-12-02 20:59:14,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:58:56" (2/3) ... [2018-12-02 20:59:14,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da5c7d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:59:14, skipping insertion in model container [2018-12-02 20:59:14,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:59:14" (3/3) ... [2018-12-02 20:59:14,545 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660a_true-unreach-call.c [2018-12-02 20:59:14,552 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 20:59:14,557 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 20:59:14,566 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 20:59:14,583 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 20:59:14,584 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 20:59:14,584 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 20:59:14,584 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 20:59:14,584 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 20:59:14,584 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 20:59:14,584 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 20:59:14,584 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 20:59:14,585 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 20:59:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2018-12-02 20:59:14,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 20:59:14,598 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:59:14,599 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:59:14,600 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:59:14,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:59:14,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1380022172, now seen corresponding path program 1 times [2018-12-02 20:59:14,606 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 20:59:14,606 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/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 [2018-12-02 20:59:14,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:59:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:59:14,812 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:59:14,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:59:14,824 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:59:14,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:59:14,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 20:59:14,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 20:59:14,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 20:59:14,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 20:59:14,847 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 2 states. [2018-12-02 20:59:14,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:59:14,871 INFO L93 Difference]: Finished difference Result 197 states and 314 transitions. [2018-12-02 20:59:14,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 20:59:14,872 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-02 20:59:14,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:59:14,879 INFO L225 Difference]: With dead ends: 197 [2018-12-02 20:59:14,880 INFO L226 Difference]: Without dead ends: 98 [2018-12-02 20:59:14,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 20:59:14,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-12-02 20:59:14,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-12-02 20:59:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-12-02 20:59:14,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2018-12-02 20:59:14,914 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2018-12-02 20:59:14,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:59:14,914 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2018-12-02 20:59:14,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 20:59:14,915 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2018-12-02 20:59:14,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:59:14,915 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:59:14,916 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:59:14,916 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:59:14,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:59:14,916 INFO L82 PathProgramCache]: Analyzing trace with hash 959017453, now seen corresponding path program 1 times [2018-12-02 20:59:14,917 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 20:59:14,917 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/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 [2018-12-02 20:59:14,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:59:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:59:15,207 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:59:15,324 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 20:59:15,325 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 20:59:15,329 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2018-12-02 20:59:15,385 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 20:59:15,389 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2018-12-02 20:59:15,389 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:59:15,420 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-12-02 20:59:15,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 9 [2018-12-02 20:59:15,442 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 20:59:15,461 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:59:15,479 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:59:15,503 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 20:59:15,504 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:60, output treesize:21 [2018-12-02 20:59:15,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:59:15,934 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:59:15,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:59:15,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 20:59:15,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 20:59:15,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 20:59:15,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 20:59:15,950 INFO L87 Difference]: Start difference. First operand 98 states and 137 transitions. Second operand 10 states. [2018-12-02 20:59:17,595 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-12-02 20:59:17,997 WARN L180 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2018-12-02 20:59:23,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:59:23,137 INFO L93 Difference]: Finished difference Result 121 states and 168 transitions. [2018-12-02 20:59:23,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 20:59:23,138 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-12-02 20:59:23,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:59:23,139 INFO L225 Difference]: With dead ends: 121 [2018-12-02 20:59:23,139 INFO L226 Difference]: Without dead ends: 91 [2018-12-02 20:59:23,140 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-12-02 20:59:23,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-12-02 20:59:23,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-12-02 20:59:23,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-12-02 20:59:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 122 transitions. [2018-12-02 20:59:23,147 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 122 transitions. Word has length 21 [2018-12-02 20:59:23,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:59:23,147 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 122 transitions. [2018-12-02 20:59:23,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 20:59:23,147 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 122 transitions. [2018-12-02 20:59:23,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:59:23,148 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:59:23,148 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:59:23,148 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:59:23,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:59:23,148 INFO L82 PathProgramCache]: Analyzing trace with hash -322982793, now seen corresponding path program 1 times [2018-12-02 20:59:23,149 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 20:59:23,149 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/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 [2018-12-02 20:59:23,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:59:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:59:23,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:59:23,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:59:23,558 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:59:23,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:59:23,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 20:59:23,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 20:59:23,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 20:59:23,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-02 20:59:23,569 INFO L87 Difference]: Start difference. First operand 91 states and 122 transitions. Second operand 8 states. [2018-12-02 20:59:28,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:59:28,778 INFO L93 Difference]: Finished difference Result 131 states and 179 transitions. [2018-12-02 20:59:28,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 20:59:28,779 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-12-02 20:59:28,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:59:28,780 INFO L225 Difference]: With dead ends: 131 [2018-12-02 20:59:28,780 INFO L226 Difference]: Without dead ends: 93 [2018-12-02 20:59:28,781 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-02 20:59:28,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-12-02 20:59:28,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2018-12-02 20:59:28,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-12-02 20:59:28,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2018-12-02 20:59:28,788 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 26 [2018-12-02 20:59:28,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:59:28,788 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2018-12-02 20:59:28,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 20:59:28,789 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2018-12-02 20:59:28,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:59:28,789 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:59:28,790 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:59:28,790 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:59:28,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:59:28,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1132329419, now seen corresponding path program 1 times [2018-12-02 20:59:28,790 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 20:59:28,791 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/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 [2018-12-02 20:59:28,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:59:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:59:28,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:59:29,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:59:29,294 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:59:29,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:59:29,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 20:59:29,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 20:59:29,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 20:59:29,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-12-02 20:59:29,305 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand 9 states. [2018-12-02 20:59:29,933 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-12-02 20:59:30,167 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-12-02 20:59:30,346 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2018-12-02 20:59:31,752 WARN L180 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2018-12-02 20:59:39,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:59:39,292 INFO L93 Difference]: Finished difference Result 99 states and 126 transitions. [2018-12-02 20:59:39,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 20:59:39,292 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-12-02 20:59:39,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:59:39,293 INFO L225 Difference]: With dead ends: 99 [2018-12-02 20:59:39,293 INFO L226 Difference]: Without dead ends: 89 [2018-12-02 20:59:39,293 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2018-12-02 20:59:39,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-12-02 20:59:39,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-12-02 20:59:39,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-12-02 20:59:39,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2018-12-02 20:59:39,299 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 114 transitions. Word has length 26 [2018-12-02 20:59:39,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:59:39,299 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 114 transitions. [2018-12-02 20:59:39,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 20:59:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2018-12-02 20:59:39,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:59:39,300 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:59:39,300 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:59:39,300 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:59:39,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:59:39,300 INFO L82 PathProgramCache]: Analyzing trace with hash -442139595, now seen corresponding path program 1 times [2018-12-02 20:59:39,300 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 20:59:39,300 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/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 [2018-12-02 20:59:39,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:59:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:59:39,584 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:59:39,605 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 20:59:39,606 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 20:59:39,607 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 20:59:39,607 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 20:59:39,608 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 85 [2018-12-02 20:59:39,700 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2018-12-02 20:59:39,700 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 20:59:39,725 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2018-12-02 20:59:39,729 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-12-02 20:59:39,729 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 20:59:39,730 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:59:39,751 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-12-02 20:59:39,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2018-12-02 20:59:39,759 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-02 20:59:39,765 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:59:39,773 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 20:59:39,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-02 20:59:39,787 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:71, output treesize:28 [2018-12-02 20:59:39,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:59:39,890 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:59:39,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:59:39,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 20:59:39,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 20:59:39,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 20:59:39,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 20:59:39,905 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. Second operand 7 states. [2018-12-02 20:59:43,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:59:43,108 INFO L93 Difference]: Finished difference Result 122 states and 160 transitions. [2018-12-02 20:59:43,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 20:59:43,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-02 20:59:43,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:59:43,111 INFO L225 Difference]: With dead ends: 122 [2018-12-02 20:59:43,111 INFO L226 Difference]: Without dead ends: 89 [2018-12-02 20:59:43,111 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-02 20:59:43,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-12-02 20:59:43,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-12-02 20:59:43,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-12-02 20:59:43,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 113 transitions. [2018-12-02 20:59:43,117 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 113 transitions. Word has length 26 [2018-12-02 20:59:43,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:59:43,118 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 113 transitions. [2018-12-02 20:59:43,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 20:59:43,118 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2018-12-02 20:59:43,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 20:59:43,118 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:59:43,118 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:59:43,118 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:59:43,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:59:43,118 INFO L82 PathProgramCache]: Analyzing trace with hash 415778449, now seen corresponding path program 1 times [2018-12-02 20:59:43,119 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 20:59:43,119 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-02 20:59:43,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:59:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:59:43,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:59:43,553 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-12-02 20:59:43,899 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-12-02 20:59:44,037 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-12-02 20:59:44,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:59:44,040 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:59:44,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:59:44,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 20:59:44,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 20:59:44,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 20:59:44,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-02 20:59:44,053 INFO L87 Difference]: Start difference. First operand 89 states and 113 transitions. Second operand 6 states. [2018-12-02 20:59:44,564 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-12-02 20:59:44,833 WARN L180 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-12-02 20:59:51,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:59:51,620 INFO L93 Difference]: Finished difference Result 95 states and 118 transitions. [2018-12-02 20:59:51,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 20:59:51,621 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-12-02 20:59:51,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:59:51,622 INFO L225 Difference]: With dead ends: 95 [2018-12-02 20:59:51,622 INFO L226 Difference]: Without dead ends: 89 [2018-12-02 20:59:51,622 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-02 20:59:51,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-12-02 20:59:51,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-12-02 20:59:51,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-12-02 20:59:51,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 111 transitions. [2018-12-02 20:59:51,629 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 111 transitions. Word has length 28 [2018-12-02 20:59:51,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:59:51,629 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 111 transitions. [2018-12-02 20:59:51,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 20:59:51,629 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 111 transitions. [2018-12-02 20:59:51,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-02 20:59:51,630 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:59:51,630 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 20:59:51,630 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:59:51,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:59:51,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1104833018, now seen corresponding path program 1 times [2018-12-02 20:59:51,630 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 20:59:51,630 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76b2a3f5-9aa9-4d41-84f1-2bb7dc71cb1e/bin-2019/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-12-02 20:59:51,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:59:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:59:51,839 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:59:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:59:52,252 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:59:52,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:59:52,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 20:59:52,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 20:59:52,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 20:59:52,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-12-02 20:59:52,264 INFO L87 Difference]: Start difference. First operand 89 states and 111 transitions. Second operand 10 states. [2018-12-02 20:59:52,905 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-12-02 20:59:54,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:59:54,046 INFO L93 Difference]: Finished difference Result 89 states and 111 transitions. [2018-12-02 20:59:54,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 20:59:54,047 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-12-02 20:59:54,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:59:54,048 INFO L225 Difference]: With dead ends: 89 [2018-12-02 20:59:54,048 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 20:59:54,048 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2018-12-02 20:59:54,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 20:59:54,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 20:59:54,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 20:59:54,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 20:59:54,049 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-12-02 20:59:54,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:59:54,049 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 20:59:54,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 20:59:54,049 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 20:59:54,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 20:59:54,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 21:00:08,994 WARN L180 SmtUtils]: Spent 14.86 s on a formula simplification. DAG size of input: 195 DAG size of output: 144 [2018-12-02 21:00:26,006 WARN L180 SmtUtils]: Spent 16.95 s on a formula simplification. DAG size of input: 195 DAG size of output: 144 [2018-12-02 21:00:26,151 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-12-02 21:00:32,450 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-12-02 21:00:32,451 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1009) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:346) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 31 more [2018-12-02 21:00:32,453 INFO L168 Benchmark]: Toolchain (without parser) took 95804.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.6 MB). Free memory was 944.7 MB in the beginning and 808.6 MB in the end (delta: 136.1 MB). Peak memory consumption was 331.6 MB. Max. memory is 11.5 GB. [2018-12-02 21:00:32,453 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:00:32,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.27 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-02 21:00:32,454 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-12-02 21:00:32,454 INFO L168 Benchmark]: Boogie Preprocessor took 36.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:00:32,455 INFO L168 Benchmark]: RCFGBuilder took 17596.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.7 MB). Peak memory consumption was 60.7 MB. Max. memory is 11.5 GB. [2018-12-02 21:00:32,455 INFO L168 Benchmark]: TraceAbstraction took 77911.58 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.1 MB). Free memory was 1.1 GB in the beginning and 808.6 MB in the end (delta: 246.8 MB). Peak memory consumption was 313.9 MB. Max. memory is 11.5 GB. [2018-12-02 21:00:32,458 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 208.27 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 17596.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.7 MB). Peak memory consumption was 60.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 77911.58 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.1 MB). Free memory was 1.1 GB in the beginning and 808.6 MB in the end (delta: 246.8 MB). Peak memory consumption was 313.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 259]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...