./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/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 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 ....................................................................................................................................................................................................................................................................................................................... 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_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/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 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:26:16,616 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:26:16,618 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:26:16,624 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:26:16,624 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:26:16,625 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:26:16,626 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:26:16,627 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:26:16,628 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:26:16,628 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:26:16,629 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:26:16,629 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:26:16,630 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:26:16,630 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:26:16,631 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:26:16,631 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:26:16,632 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:26:16,633 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:26:16,634 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:26:16,635 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:26:16,635 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:26:16,636 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:26:16,638 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:26:16,638 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:26:16,638 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:26:16,639 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:26:16,639 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:26:16,640 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:26:16,640 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:26:16,641 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:26:16,641 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:26:16,641 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:26:16,641 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:26:16,642 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:26:16,642 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:26:16,642 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:26:16,643 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 17:26:16,652 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:26:16,653 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:26:16,653 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:26:16,653 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 17:26:16,654 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:26:16,654 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:26:16,654 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:26:16,654 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:26:16,654 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:26:16,655 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:26:16,655 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:26:16,655 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:26:16,655 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:26:16,655 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:26:16,655 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:26:16,655 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:26:16,655 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:26:16,655 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:26:16,656 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:26:16,656 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:26:16,656 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:26:16,656 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:26:16,656 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:26:16,656 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:26:16,656 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:26:16,656 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:26:16,656 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:26:16,656 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 17:26:16,657 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:26:16,657 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:26:16,657 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_b69d9ee0-e526-43be-ad0f-90adf633ba02/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 -> 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 [2018-11-18 17:26:16,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:26:16,685 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:26:16,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:26:16,688 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:26:16,688 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:26:16,689 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-11-18 17:26:16,723 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/data/62b8f4264/c94b64b7a4724d519885cbaf172adab5/FLAG473efb3fd [2018-11-18 17:26:17,115 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:26:17,115 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-11-18 17:26:17,119 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/data/62b8f4264/c94b64b7a4724d519885cbaf172adab5/FLAG473efb3fd [2018-11-18 17:26:17,130 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/data/62b8f4264/c94b64b7a4724d519885cbaf172adab5 [2018-11-18 17:26:17,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:26:17,134 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 17:26:17,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:26:17,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:26:17,138 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:26:17,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:26:17" (1/1) ... [2018-11-18 17:26:17,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7601ec79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:17, skipping insertion in model container [2018-11-18 17:26:17,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:26:17" (1/1) ... [2018-11-18 17:26:17,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:26:17,165 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:26:17,298 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:26:17,300 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:26:17,321 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:26:17,335 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:26:17,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:17 WrapperNode [2018-11-18 17:26:17,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:26:17,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:26:17,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:26:17,336 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:26:17,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:17" (1/1) ... [2018-11-18 17:26:17,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:17" (1/1) ... [2018-11-18 17:26:17,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:17" (1/1) ... [2018-11-18 17:26:17,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:17" (1/1) ... [2018-11-18 17:26:17,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:17" (1/1) ... [2018-11-18 17:26:17,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:17" (1/1) ... [2018-11-18 17:26:17,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:17" (1/1) ... [2018-11-18 17:26:17,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:26:17,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:26:17,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:26:17,408 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:26:17,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/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 [2018-11-18 17:26:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:26:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:26:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-18 17:26:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 17:26:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:26:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 17:26:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-18 17:26:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:26:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 17:26:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 17:26:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:26:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 17:26:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 17:26:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 17:26:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:26:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:26:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:26:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 17:26:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 17:26:17,632 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:26:17,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:17 BoogieIcfgContainer [2018-11-18 17:26:17,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:26:17,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:26:17,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:26:17,636 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:26:17,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:26:17" (1/3) ... [2018-11-18 17:26:17,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec89634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:26:17, skipping insertion in model container [2018-11-18 17:26:17,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:17" (2/3) ... [2018-11-18 17:26:17,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec89634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:26:17, skipping insertion in model container [2018-11-18 17:26:17,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:17" (3/3) ... [2018-11-18 17:26:17,638 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c_true-unreach-call.c [2018-11-18 17:26:17,644 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:26:17,649 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:26:17,659 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:26:17,678 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:26:17,678 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:26:17,679 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:26:17,679 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:26:17,679 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:26:17,679 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:26:17,679 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:26:17,679 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:26:17,679 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:26:17,689 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-18 17:26:17,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 17:26:17,693 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:26:17,693 INFO L375 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] [2018-11-18 17:26:17,695 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:26:17,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:26:17,698 INFO L82 PathProgramCache]: Analyzing trace with hash -660389474, now seen corresponding path program 1 times [2018-11-18 17:26:17,699 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:26:17,699 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:26:17,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:26:17,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:26:17,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:26:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:26:17,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:26:17,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:26:17,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:26:17,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:26:17,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:26:17,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:26:17,802 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-18 17:26:17,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:26:17,817 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2018-11-18 17:26:17,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:26:17,818 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-18 17:26:17,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:26:17,823 INFO L225 Difference]: With dead ends: 76 [2018-11-18 17:26:17,823 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 17:26:17,826 INFO L604 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 [2018-11-18 17:26:17,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 17:26:17,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-18 17:26:17,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 17:26:17,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-18 17:26:17,850 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 25 [2018-11-18 17:26:17,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:26:17,850 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-18 17:26:17,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:26:17,850 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-18 17:26:17,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 17:26:17,851 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:26:17,851 INFO L375 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] [2018-11-18 17:26:17,851 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:26:17,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:26:17,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1200366340, now seen corresponding path program 1 times [2018-11-18 17:26:17,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:26:17,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:26:17,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:26:17,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:26:17,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:26:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:26:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:26:17,949 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 17:26:17,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:26:17 BoogieIcfgContainer [2018-11-18 17:26:17,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:26:17,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:26:17,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:26:17,966 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:26:17,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:17" (3/4) ... [2018-11-18 17:26:17,969 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 17:26:17,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:26:17,970 INFO L168 Benchmark]: Toolchain (without parser) took 836.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -121.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:17,971 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:26:17,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.05 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:17,972 INFO L168 Benchmark]: Boogie Preprocessor took 71.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:17,972 INFO L168 Benchmark]: RCFGBuilder took 224.49 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:17,973 INFO L168 Benchmark]: TraceAbstraction took 332.96 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:17,973 INFO L168 Benchmark]: Witness Printer took 2.84 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. [2018-11-18 17:26:17,975 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 201.05 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 224.49 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 332.96 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 40, overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L86] double x = 1.0 / 0.0; [L87] CALL, EXPR round_double(x) VAL [\old(x)=10737418243] [L15] __int32_t msw, exponent_less_1023; [L16] __uint32_t lsw; VAL [\old(x)=10737418243, x=10737418243] [L18] FCALL ieee_double_shape_type ew_u; [L19] FCALL ew_u.value = (x) [L20] EXPR, FCALL ew_u.parts.msw [L20] (msw) = ew_u.parts.msw [L21] EXPR, FCALL ew_u.parts.lsw [L21] (lsw) = ew_u.parts.lsw [L22] COND FALSE !(0) VAL [\old(x)=10737418243, lsw=2147483655, msw=2147483647, x=10737418243] [L23] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=10737418243, exponent_less_1023=1024, lsw=2147483655, msw=2147483647, x=10737418243] [L24] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=10737418243, exponent_less_1023=1024, lsw=2147483655, msw=2147483647, x=10737418243] [L38] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=10737418243, exponent_less_1023=1024, lsw=2147483655, msw=2147483647, x=10737418243] [L39] COND TRUE exponent_less_1023 == 1024 [L40] RET return x + x; VAL [\old(x)=10737418243, exponent_less_1023=1024, lsw=2147483655, msw=2147483647, x=10737418243] [L87] EXPR round_double(x) VAL [round_double(x)=10737418248, x=10737418243] [L87] double res = round_double(x); [L90] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418248] [L65] __int32_t hx, lx; VAL [\old(x)=10737418248, x=10737418248] [L67] FCALL ieee_double_shape_type ew_u; [L68] FCALL ew_u.value = (x) [L69] EXPR, FCALL ew_u.parts.msw [L69] (hx) = ew_u.parts.msw [L70] EXPR, FCALL ew_u.parts.lsw [L70] (lx) = ew_u.parts.lsw [L71] COND FALSE !(0) VAL [\old(x)=10737418248, hx=-2147483648, lx=-2147483648, x=10737418248] [L72] hx &= 0x7fffffff [L73] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L74] hx = 0x7ff00000 - hx [L75] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418248, \result=0, hx=2146435072, lx=-2147483648, x=10737418248] [L90] EXPR isinf_double(res) VAL [isinf_double(res)=0, res=10737418248, x=10737418243] [L90] COND TRUE !isinf_double(res) [L91] __VERIFIER_error() VAL [res=10737418248, x=10737418243] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49 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=42occurred 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, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 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 0.1.23-5842f4b [2018-11-18 17:26:19,334 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:26:19,335 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:26:19,344 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:26:19,344 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:26:19,345 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:26:19,345 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:26:19,347 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:26:19,348 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:26:19,348 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:26:19,349 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:26:19,349 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:26:19,350 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:26:19,350 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:26:19,351 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:26:19,352 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:26:19,352 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:26:19,353 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:26:19,355 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:26:19,356 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:26:19,356 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:26:19,357 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:26:19,359 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:26:19,359 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:26:19,359 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:26:19,360 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:26:19,360 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:26:19,361 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:26:19,361 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:26:19,362 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:26:19,362 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:26:19,363 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:26:19,363 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:26:19,363 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:26:19,364 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:26:19,364 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:26:19,364 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 17:26:19,375 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:26:19,375 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:26:19,375 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:26:19,376 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 17:26:19,376 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:26:19,376 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:26:19,376 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:26:19,377 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:26:19,377 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:26:19,377 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:26:19,377 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:26:19,377 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:26:19,377 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:26:19,377 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:26:19,378 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 17:26:19,378 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 17:26:19,378 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:26:19,378 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:26:19,378 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:26:19,378 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:26:19,378 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:26:19,379 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:26:19,379 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:26:19,379 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:26:19,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:26:19,379 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:26:19,379 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:26:19,379 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:26:19,379 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 17:26:19,380 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:26:19,380 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 17:26:19,380 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 17:26:19,380 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_b69d9ee0-e526-43be-ad0f-90adf633ba02/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 -> 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 [2018-11-18 17:26:19,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:26:19,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:26:19,422 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:26:19,424 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:26:19,424 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:26:19,425 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-11-18 17:26:19,473 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/data/caf0143c5/58fb162df44147b1b094b527b2e4b5f1/FLAG996f31f25 [2018-11-18 17:26:19,784 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:26:19,785 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-11-18 17:26:19,789 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/data/caf0143c5/58fb162df44147b1b094b527b2e4b5f1/FLAG996f31f25 [2018-11-18 17:26:19,797 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/data/caf0143c5/58fb162df44147b1b094b527b2e4b5f1 [2018-11-18 17:26:19,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:26:19,801 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 17:26:19,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:26:19,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:26:19,805 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:26:19,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:26:19" (1/1) ... [2018-11-18 17:26:19,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26edcba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:19, skipping insertion in model container [2018-11-18 17:26:19,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:26:19" (1/1) ... [2018-11-18 17:26:19,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:26:19,828 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:26:19,969 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:26:19,973 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:26:19,998 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:26:20,020 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:26:20,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:20 WrapperNode [2018-11-18 17:26:20,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:26:20,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:26:20,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:26:20,021 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:26:20,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:20" (1/1) ... [2018-11-18 17:26:20,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:20" (1/1) ... [2018-11-18 17:26:20,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:20" (1/1) ... [2018-11-18 17:26:20,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:20" (1/1) ... [2018-11-18 17:26:20,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:20" (1/1) ... [2018-11-18 17:26:20,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:20" (1/1) ... [2018-11-18 17:26:20,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:20" (1/1) ... [2018-11-18 17:26:20,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:26:20,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:26:20,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:26:20,061 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:26:20,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/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 [2018-11-18 17:26:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:26:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:26:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-18 17:26:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 17:26:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:26:20,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 17:26:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-18 17:26:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:26:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 17:26:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 17:26:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:26:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 17:26:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 17:26:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 17:26:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:26:20,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:26:20,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:26:20,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 17:26:20,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 17:26:20,261 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:26:20,399 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:26:20,425 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:26:20,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:20 BoogieIcfgContainer [2018-11-18 17:26:20,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:26:20,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:26:20,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:26:20,428 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:26:20,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:26:19" (1/3) ... [2018-11-18 17:26:20,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9e9e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:26:20, skipping insertion in model container [2018-11-18 17:26:20,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:20" (2/3) ... [2018-11-18 17:26:20,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9e9e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:26:20, skipping insertion in model container [2018-11-18 17:26:20,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:20" (3/3) ... [2018-11-18 17:26:20,431 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c_true-unreach-call.c [2018-11-18 17:26:20,436 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:26:20,440 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:26:20,450 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:26:20,468 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:26:20,468 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:26:20,468 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:26:20,469 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:26:20,469 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:26:20,469 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:26:20,469 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:26:20,469 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:26:20,469 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:26:20,480 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-18 17:26:20,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 17:26:20,484 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:26:20,484 INFO L375 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] [2018-11-18 17:26:20,486 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:26:20,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:26:20,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1712125210, now seen corresponding path program 1 times [2018-11-18 17:26:20,491 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:26:20,491 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/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 [2018-11-18 17:26:20,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:26:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:26:20,572 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:26:20,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:26:20,585 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:26:20,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:26:20,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:26:20,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:26:20,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:26:20,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:26:20,611 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-11-18 17:26:20,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:26:20,625 INFO L93 Difference]: Finished difference Result 74 states and 103 transitions. [2018-11-18 17:26:20,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:26:20,626 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 17:26:20,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:26:20,632 INFO L225 Difference]: With dead ends: 74 [2018-11-18 17:26:20,632 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 17:26:20,634 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:26:20,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 17:26:20,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 17:26:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 17:26:20,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-11-18 17:26:20,658 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 24 [2018-11-18 17:26:20,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:26:20,658 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-11-18 17:26:20,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:26:20,658 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-11-18 17:26:20,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 17:26:20,659 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:26:20,659 INFO L375 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] [2018-11-18 17:26:20,659 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:26:20,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:26:20,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1963485031, now seen corresponding path program 1 times [2018-11-18 17:26:20,660 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:26:20,660 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/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 [2018-11-18 17:26:20,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:26:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:26:20,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:26:21,581 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 17:26:21,582 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 17:26:21,585 INFO L477 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 33 treesize of output 43 [2018-11-18 17:26:21,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 27 treesize of output 28 [2018-11-18 17:26:21,625 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:26:21,639 INFO L477 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 24 treesize of output 18 [2018-11-18 17:26:21,644 INFO L477 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 18 treesize of output 4 [2018-11-18 17:26:21,645 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 17:26:21,647 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:26:21,649 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:26:21,659 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. [2018-11-18 17:26:21,660 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-18 17:26:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:26:22,303 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:26:22,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:26:22,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 17:26:22,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 17:26:22,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 17:26:22,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:26:22,318 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 11 states. [2018-11-18 17:26:23,386 WARN L180 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 17:26:24,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:26:24,996 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2018-11-18 17:26:24,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 17:26:24,996 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-18 17:26:24,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:26:24,998 INFO L225 Difference]: With dead ends: 46 [2018-11-18 17:26:24,998 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 17:26:24,999 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-18 17:26:25,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 17:26:25,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-18 17:26:25,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 17:26:25,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-11-18 17:26:25,006 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 26 [2018-11-18 17:26:25,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:26:25,007 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-11-18 17:26:25,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 17:26:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-11-18 17:26:25,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 17:26:25,008 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:26:25,008 INFO L375 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] [2018-11-18 17:26:25,008 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:26:25,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:26:25,009 INFO L82 PathProgramCache]: Analyzing trace with hash 2038079258, now seen corresponding path program 1 times [2018-11-18 17:26:25,009 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:26:25,009 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/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 [2018-11-18 17:26:25,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:26:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:26:25,059 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:26:25,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:26:25,144 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:26:25,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:26:25,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 17:26:25,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 17:26:25,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 17:26:25,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:26:25,152 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 7 states. [2018-11-18 17:26:25,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:26:25,641 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-11-18 17:26:25,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 17:26:25,642 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 17:26:25,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:26:25,642 INFO L225 Difference]: With dead ends: 45 [2018-11-18 17:26:25,642 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:26:25,643 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-18 17:26:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:26:25,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:26:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:26:25,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:26:25,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-18 17:26:25,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:26:25,644 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:26:25,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 17:26:25,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:26:25,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:26:25,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:26:25,695 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:26:25,695 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:26:25,695 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:26:25,695 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 66 71) no Hoare annotation was computed. [2018-11-18 17:26:25,695 INFO L421 ceAbstractionStarter]: At program point L66-3(lines 66 71) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-11-18 17:26:25,695 INFO L425 ceAbstractionStarter]: For program point L66-4(lines 66 71) no Hoare annotation was computed. [2018-11-18 17:26:25,696 INFO L425 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 64 76) no Hoare annotation was computed. [2018-11-18 17:26:25,696 INFO L425 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 64 76) no Hoare annotation was computed. [2018-11-18 17:26:25,696 INFO L428 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 64 76) the Hoare annotation is: true [2018-11-18 17:26:25,696 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 28) no Hoare annotation was computed. [2018-11-18 17:26:25,696 INFO L425 ceAbstractionStarter]: For program point round_doubleFINAL(lines 14 61) no Hoare annotation was computed. [2018-11-18 17:26:25,696 INFO L425 ceAbstractionStarter]: For program point L27-2(lines 27 28) no Hoare annotation was computed. [2018-11-18 17:26:25,696 INFO L428 ceAbstractionStarter]: At program point round_doubleENTRY(lines 14 61) the Hoare annotation is: true [2018-11-18 17:26:25,696 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-18 17:26:25,696 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 53) no Hoare annotation was computed. [2018-11-18 17:26:25,696 INFO L425 ceAbstractionStarter]: For program point round_doubleEXIT(lines 14 61) no Hoare annotation was computed. [2018-11-18 17:26:25,697 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-11-18 17:26:25,697 INFO L425 ceAbstractionStarter]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2018-11-18 17:26:25,697 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 37) no Hoare annotation was computed. [2018-11-18 17:26:25,697 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 59) no Hoare annotation was computed. [2018-11-18 17:26:25,697 INFO L425 ceAbstractionStarter]: For program point L54-2(lines 14 61) no Hoare annotation was computed. [2018-11-18 17:26:25,697 INFO L425 ceAbstractionStarter]: For program point L54-3(lines 54 59) no Hoare annotation was computed. [2018-11-18 17:26:25,697 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 22) no Hoare annotation was computed. [2018-11-18 17:26:25,697 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 22) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-11-18 17:26:25,697 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-11-18 17:26:25,697 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 22) no Hoare annotation was computed. [2018-11-18 17:26:25,698 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 53) no Hoare annotation was computed. [2018-11-18 17:26:25,701 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 42) no Hoare annotation was computed. [2018-11-18 17:26:25,702 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:26:25,702 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 17:26:25,702 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:26:25,702 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:26:25,702 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-11-18 17:26:25,702 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-11-18 17:26:25,702 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-11-18 17:26:25,702 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 17:26:25,702 INFO L421 ceAbstractionStarter]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2018-11-18 17:26:25,703 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 90 93) no Hoare annotation was computed. [2018-11-18 17:26:25,703 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-11-18 17:26:25,703 INFO L421 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53))) [2018-11-18 17:26:25,703 INFO L425 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-11-18 17:26:25,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:26:25 BoogieIcfgContainer [2018-11-18 17:26:25,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:26:25,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:26:25,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:26:25,714 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:26:25,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:20" (3/4) ... [2018-11-18 17:26:25,717 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:26:25,722 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:26:25,722 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-11-18 17:26:25,723 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-11-18 17:26:25,723 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:26:25,727 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-18 17:26:25,727 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-18 17:26:25,727 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 17:26:25,749 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 17:26:25,749 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-18 17:26:25,769 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b69d9ee0-e526-43be-ad0f-90adf633ba02/bin-2019/uautomizer/witness.graphml [2018-11-18 17:26:25,769 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:26:25,770 INFO L168 Benchmark]: Toolchain (without parser) took 5970.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 949.7 MB in the beginning and 969.7 MB in the end (delta: -19.9 MB). Peak memory consumption was 144.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:25,771 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:26:25,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.36 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:25,771 INFO L168 Benchmark]: Boogie Preprocessor took 39.40 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:26:25,771 INFO L168 Benchmark]: RCFGBuilder took 365.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -201.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:25,772 INFO L168 Benchmark]: TraceAbstraction took 5286.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.7 MB in the end (delta: 165.6 MB). Peak memory consumption was 165.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:25,772 INFO L168 Benchmark]: Witness Printer took 55.95 ms. Allocated memory is still 1.2 GB. Free memory is still 969.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:26:25,773 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 219.36 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.40 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 365.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -201.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5286.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.7 MB in the end (delta: 165.6 MB). Peak memory consumption was 165.6 MB. Max. memory is 11.5 GB. * Witness Printer took 55.95 ms. Allocated memory is still 1.2 GB. Free memory is still 969.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 5.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 87 SDslu, 322 SDs, 0 SdLazy, 162 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 45 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 73 ConstructedInterpolants, 12 QuantifiedInterpolants, 11729 SizeOfPredicates, 10 NumberOfNonLiveVariables, 214 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...