./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1011b_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_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1011b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/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 dbef25694faa90ff4d63502c2f243449da0e6c28 .................................................................................................................................................................................................................................................................................................... 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_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1011b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/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 dbef25694faa90ff4d63502c2f243449da0e6c28 ........................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:19:27,642 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:19:27,643 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:19:27,649 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:19:27,649 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:19:27,650 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:19:27,651 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:19:27,652 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:19:27,653 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:19:27,654 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:19:27,654 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:19:27,655 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:19:27,655 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:19:27,656 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:19:27,657 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:19:27,658 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:19:27,659 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:19:27,660 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:19:27,661 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:19:27,662 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:19:27,664 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:19:27,664 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:19:27,666 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:19:27,666 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:19:27,667 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:19:27,667 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:19:27,668 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:19:27,668 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:19:27,669 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:19:27,670 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:19:27,670 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:19:27,670 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:19:27,670 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:19:27,670 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:19:27,671 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:19:27,671 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:19:27,671 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 16:19:27,678 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:19:27,678 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:19:27,679 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:19:27,679 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 16:19:27,679 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:19:27,679 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:19:27,680 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:19:27,680 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:19:27,680 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:19:27,680 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:19:27,680 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:19:27,680 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:19:27,680 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:19:27,680 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:19:27,681 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:19:27,681 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:19:27,681 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:19:27,681 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:19:27,681 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:19:27,681 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:19:27,681 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:19:27,681 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:19:27,681 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:19:27,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:19:27,682 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:19:27,682 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:19:27,682 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:19:27,682 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:19:27,682 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:19:27,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:19:27,682 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_f2e62c71-03d6-4f84-a532-1780425395cd/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 -> dbef25694faa90ff4d63502c2f243449da0e6c28 [2018-11-18 16:19:27,705 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:19:27,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:19:27,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:19:27,717 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:19:27,717 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:19:27,717 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1011b_true-unreach-call.c [2018-11-18 16:19:27,761 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/data/8187cd649/6953a90b18ed4282b47efda455721cb6/FLAG5e55838ad [2018-11-18 16:19:28,159 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:19:28,160 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/sv-benchmarks/c/float-newlib/double_req_bl_1011b_true-unreach-call.c [2018-11-18 16:19:28,164 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/data/8187cd649/6953a90b18ed4282b47efda455721cb6/FLAG5e55838ad [2018-11-18 16:19:28,175 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/data/8187cd649/6953a90b18ed4282b47efda455721cb6 [2018-11-18 16:19:28,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:19:28,178 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:19:28,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:19:28,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:19:28,180 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:19:28,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:19:28" (1/1) ... [2018-11-18 16:19:28,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4959e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:28, skipping insertion in model container [2018-11-18 16:19:28,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:19:28" (1/1) ... [2018-11-18 16:19:28,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:19:28,201 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:19:28,315 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:19:28,317 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:19:28,330 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:19:28,342 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:19:28,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:28 WrapperNode [2018-11-18 16:19:28,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:19:28,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:19:28,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:19:28,343 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:19:28,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:28" (1/1) ... [2018-11-18 16:19:28,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:28" (1/1) ... [2018-11-18 16:19:28,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:28" (1/1) ... [2018-11-18 16:19:28,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:28" (1/1) ... [2018-11-18 16:19:28,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:28" (1/1) ... [2018-11-18 16:19:28,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:28" (1/1) ... [2018-11-18 16:19:28,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:28" (1/1) ... [2018-11-18 16:19:28,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:19:28,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:19:28,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:19:28,406 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:19:28,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/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 16:19:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:19:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:19:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-18 16:19:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-18 16:19:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:19:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:19:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-18 16:19:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:19:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 16:19:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:19:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:19:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-18 16:19:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 16:19:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 16:19:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:19:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:19:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:19:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 16:19:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 16:19:28,627 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:19:28,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:19:28 BoogieIcfgContainer [2018-11-18 16:19:28,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:19:28,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:19:28,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:19:28,631 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:19:28,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:19:28" (1/3) ... [2018-11-18 16:19:28,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1bc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:19:28, skipping insertion in model container [2018-11-18 16:19:28,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:28" (2/3) ... [2018-11-18 16:19:28,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1bc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:19:28, skipping insertion in model container [2018-11-18 16:19:28,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:19:28" (3/3) ... [2018-11-18 16:19:28,634 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011b_true-unreach-call.c [2018-11-18 16:19:28,642 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:19:28,648 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:19:28,664 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:19:28,690 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:19:28,690 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:19:28,691 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:19:28,691 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:19:28,691 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:19:28,691 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:19:28,691 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:19:28,691 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:19:28,691 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:19:28,706 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-18 16:19:28,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 16:19:28,711 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:19:28,712 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:19:28,713 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:19:28,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:19:28,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1335457464, now seen corresponding path program 1 times [2018-11-18 16:19:28,720 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:19:28,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:19:28,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:19:28,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:19:28,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:19:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:19:28,817 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 16:19:28,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:19:28,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:19:28,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:19:28,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:19:28,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:19:28,835 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-18 16:19:28,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:19:28,853 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2018-11-18 16:19:28,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:19:28,854 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-18 16:19:28,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:19:28,861 INFO L225 Difference]: With dead ends: 56 [2018-11-18 16:19:28,861 INFO L226 Difference]: Without dead ends: 28 [2018-11-18 16:19:28,863 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 16:19:28,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-18 16:19:28,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-18 16:19:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 16:19:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-18 16:19:28,886 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2018-11-18 16:19:28,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:19:28,886 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-18 16:19:28,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:19:28,886 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-18 16:19:28,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 16:19:28,887 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:19:28,887 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:19:28,887 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:19:28,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:19:28,888 INFO L82 PathProgramCache]: Analyzing trace with hash -435364676, now seen corresponding path program 1 times [2018-11-18 16:19:28,888 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:19:28,888 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:19:28,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:19:28,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:19:28,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:19:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:19:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:19:28,938 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:19:28,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:19:28 BoogieIcfgContainer [2018-11-18 16:19:28,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:19:28,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:19:28,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:19:28,954 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:19:28,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:19:28" (3/4) ... [2018-11-18 16:19:28,956 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:19:28,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:19:28,957 INFO L168 Benchmark]: Toolchain (without parser) took 779.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -116.7 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:19:28,958 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:19:28,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.82 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 944.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:19:28,959 INFO L168 Benchmark]: Boogie Preprocessor took 62.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:19:28,959 INFO L168 Benchmark]: RCFGBuilder took 222.00 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:19:28,960 INFO L168 Benchmark]: TraceAbstraction took 325.28 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: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:19:28,960 INFO L168 Benchmark]: Witness Printer took 2.98 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 16:19:28,962 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.82 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 944.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 222.00 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 325.28 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: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.98 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: 52]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 51, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L47] double x = -0.0; [L48] CALL, EXPR fabs_double(x) VAL [\old(x)=12] [L26] __uint32_t high; VAL [\old(x)=12, x=12] [L28] FCALL ieee_double_shape_type gh_u; [L29] FCALL gh_u.value = (x) [L30] EXPR, FCALL gh_u.parts.msw [L30] (high) = gh_u.parts.msw [L31] COND FALSE !(0) VAL [\old(x)=12, high=17, x=12] [L33] FCALL ieee_double_shape_type sh_u; [L34] FCALL sh_u.value = (x) [L35] FCALL sh_u.parts.msw = (high & 0x7fffffff) [L36] EXPR, FCALL sh_u.value [L36] (x) = sh_u.value [L37] COND FALSE !(0) VAL [\old(x)=12, high=17, x=12] [L38] RET return x; VAL [\old(x)=12, \result=12, high=17, x=12] [L48] EXPR fabs_double(x) VAL [fabs_double(x)=12, x=12] [L48] double res = fabs_double(x); [L51] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=12, res == 0.0 && __signbit_double(res) == 0=0, x=12] [L51] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L52] __VERIFIER_error() VAL [res=12, x=12] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 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=32occurred 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, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 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 16:19:30,395 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:19:30,397 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:19:30,405 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:19:30,406 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:19:30,406 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:19:30,407 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:19:30,408 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:19:30,409 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:19:30,410 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:19:30,411 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:19:30,411 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:19:30,411 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:19:30,412 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:19:30,413 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:19:30,414 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:19:30,414 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:19:30,415 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:19:30,417 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:19:30,418 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:19:30,418 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:19:30,419 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:19:30,421 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:19:30,421 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:19:30,421 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:19:30,422 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:19:30,422 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:19:30,423 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:19:30,424 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:19:30,424 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:19:30,425 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:19:30,425 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:19:30,425 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:19:30,425 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:19:30,426 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:19:30,427 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:19:30,427 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 16:19:30,437 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:19:30,437 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:19:30,438 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:19:30,438 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 16:19:30,439 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:19:30,439 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:19:30,439 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:19:30,439 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:19:30,439 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:19:30,439 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:19:30,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:19:30,440 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:19:30,440 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:19:30,440 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:19:30,440 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:19:30,440 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:19:30,440 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:19:30,440 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:19:30,440 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:19:30,441 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:19:30,441 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:19:30,441 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:19:30,441 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:19:30,441 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:19:30,441 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:19:30,441 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:19:30,442 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:19:30,442 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:19:30,442 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 16:19:30,442 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:19:30,442 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:19:30,442 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:19:30,442 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_f2e62c71-03d6-4f84-a532-1780425395cd/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 -> dbef25694faa90ff4d63502c2f243449da0e6c28 [2018-11-18 16:19:30,475 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:19:30,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:19:30,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:19:30,488 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:19:30,489 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:19:30,489 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1011b_true-unreach-call.c [2018-11-18 16:19:30,535 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/data/022306edd/23aa86ba84cc4aa4816862807fc331e4/FLAGb3cdf25a9 [2018-11-18 16:19:30,870 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:19:30,871 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/sv-benchmarks/c/float-newlib/double_req_bl_1011b_true-unreach-call.c [2018-11-18 16:19:30,875 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/data/022306edd/23aa86ba84cc4aa4816862807fc331e4/FLAGb3cdf25a9 [2018-11-18 16:19:31,299 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/data/022306edd/23aa86ba84cc4aa4816862807fc331e4 [2018-11-18 16:19:31,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:19:31,302 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:19:31,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:19:31,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:19:31,306 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:19:31,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:19:31" (1/1) ... [2018-11-18 16:19:31,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@795e69c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:31, skipping insertion in model container [2018-11-18 16:19:31,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:19:31" (1/1) ... [2018-11-18 16:19:31,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:19:31,331 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:19:31,451 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:19:31,454 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:19:31,468 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:19:31,488 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:19:31,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:31 WrapperNode [2018-11-18 16:19:31,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:19:31,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:19:31,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:19:31,489 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:19:31,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:31" (1/1) ... [2018-11-18 16:19:31,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:31" (1/1) ... [2018-11-18 16:19:31,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:31" (1/1) ... [2018-11-18 16:19:31,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:31" (1/1) ... [2018-11-18 16:19:31,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:31" (1/1) ... [2018-11-18 16:19:31,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:31" (1/1) ... [2018-11-18 16:19:31,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:31" (1/1) ... [2018-11-18 16:19:31,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:19:31,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:19:31,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:19:31,522 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:19:31,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/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 16:19:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:19:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:19:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-18 16:19:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-18 16:19:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:19:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:19:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-18 16:19:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:19:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 16:19:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 16:19:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:19:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-18 16:19:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 16:19:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 16:19:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:19:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:19:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:19:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 16:19:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 16:19:31,702 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:19:31,756 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:19:31,767 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:19:31,782 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:19:31,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:19:31 BoogieIcfgContainer [2018-11-18 16:19:31,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:19:31,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:19:31,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:19:31,786 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:19:31,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:19:31" (1/3) ... [2018-11-18 16:19:31,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5d6f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:19:31, skipping insertion in model container [2018-11-18 16:19:31,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:19:31" (2/3) ... [2018-11-18 16:19:31,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5d6f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:19:31, skipping insertion in model container [2018-11-18 16:19:31,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:19:31" (3/3) ... [2018-11-18 16:19:31,788 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011b_true-unreach-call.c [2018-11-18 16:19:31,796 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:19:31,801 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:19:31,811 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:19:31,832 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:19:31,832 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:19:31,832 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:19:31,833 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:19:31,833 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:19:31,833 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:19:31,833 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:19:31,833 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:19:31,833 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:19:31,842 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-18 16:19:31,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 16:19:31,846 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:19:31,847 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:19:31,848 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:19:31,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:19:31,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1335457464, now seen corresponding path program 1 times [2018-11-18 16:19:31,854 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:19:31,854 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/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 16:19:31,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:19:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:19:31,899 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:19:31,910 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 16:19:31,911 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:19:31,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:19:31,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:19:31,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:19:31,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:19:31,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:19:31,931 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-18 16:19:31,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:19:31,945 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2018-11-18 16:19:31,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:19:31,946 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-18 16:19:31,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:19:31,952 INFO L225 Difference]: With dead ends: 56 [2018-11-18 16:19:31,953 INFO L226 Difference]: Without dead ends: 28 [2018-11-18 16:19:31,955 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 16:19:31,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-18 16:19:31,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-18 16:19:31,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 16:19:31,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-18 16:19:31,980 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2018-11-18 16:19:31,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:19:31,981 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-18 16:19:31,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:19:31,981 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-18 16:19:31,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 16:19:31,982 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:19:31,982 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:19:31,982 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:19:31,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:19:31,983 INFO L82 PathProgramCache]: Analyzing trace with hash -435364676, now seen corresponding path program 1 times [2018-11-18 16:19:31,983 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:19:31,983 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/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 16:19:31,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:19:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:19:32,040 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:19:32,130 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 66 treesize of output 60 [2018-11-18 16:19:32,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 60 treesize of output 55 [2018-11-18 16:19:32,158 INFO L477 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 37 treesize of output 27 [2018-11-18 16:19:32,158 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 16:19:32,164 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 16:19:32,168 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 16:19:32,183 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. [2018-11-18 16:19:32,183 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:91, output treesize:52 [2018-11-18 16:19:32,388 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 16:19:32,389 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:19:32,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:19:32,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 16:19:32,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 16:19:32,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 16:19:32,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:19:32,405 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 9 states. [2018-11-18 16:19:33,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:19:33,855 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-11-18 16:19:33,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 16:19:33,856 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-11-18 16:19:33,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:19:33,856 INFO L225 Difference]: With dead ends: 31 [2018-11-18 16:19:33,856 INFO L226 Difference]: Without dead ends: 28 [2018-11-18 16:19:33,857 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-11-18 16:19:33,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-18 16:19:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-18 16:19:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 16:19:33,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-11-18 16:19:33,860 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 19 [2018-11-18 16:19:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:19:33,860 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-11-18 16:19:33,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 16:19:33,861 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-11-18 16:19:33,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 16:19:33,861 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:19:33,861 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 16:19:33,862 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:19:33,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:19:33,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1558039767, now seen corresponding path program 1 times [2018-11-18 16:19:33,862 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:19:33,863 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/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 16:19:33,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:19:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:19:33,953 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:19:34,001 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 66 treesize of output 60 [2018-11-18 16:19:34,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 60 treesize of output 55 [2018-11-18 16:19:34,017 INFO L477 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 37 treesize of output 27 [2018-11-18 16:19:34,017 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 16:19:34,021 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 16:19:34,024 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 16:19:34,034 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. [2018-11-18 16:19:34,035 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:76, output treesize:37 [2018-11-18 16:19:34,247 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 16:19:34,248 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 16:19:34,249 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 16:19:34,284 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 16:19:34,290 INFO L477 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 24 treesize of output 24 [2018-11-18 16:19:34,290 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 16:19:34,304 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 16:19:34,309 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 16:19:34,310 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 16:19:34,312 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 16:19:34,315 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 16:19:34,321 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 16:19:34,322 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 16:19:34,512 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 16:19:34,512 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:19:34,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:19:34,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-18 16:19:34,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 16:19:34,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 16:19:34,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-11-18 16:19:34,521 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 14 states. [2018-11-18 16:19:35,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:19:35,497 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-11-18 16:19:35,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 16:19:35,497 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 27 [2018-11-18 16:19:35,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:19:35,498 INFO L225 Difference]: With dead ends: 28 [2018-11-18 16:19:35,498 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:19:35,498 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2018-11-18 16:19:35,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:19:35,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:19:35,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:19:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:19:35,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-18 16:19:35,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:19:35,499 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:19:35,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 16:19:35,499 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:19:35,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:19:35,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:19:35,571 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 27 31) no Hoare annotation was computed. [2018-11-18 16:19:35,571 INFO L425 ceAbstractionStarter]: For program point fabs_doubleEXIT(lines 25 39) no Hoare annotation was computed. [2018-11-18 16:19:35,571 INFO L421 ceAbstractionStarter]: At program point L27-3(lines 27 31) the Hoare annotation is: (= |fabs_double_#in~x| fabs_double_~x) [2018-11-18 16:19:35,571 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 37) no Hoare annotation was computed. [2018-11-18 16:19:35,571 INFO L425 ceAbstractionStarter]: For program point L32-2(lines 25 39) no Hoare annotation was computed. [2018-11-18 16:19:35,571 INFO L425 ceAbstractionStarter]: For program point L32-3(lines 32 37) no Hoare annotation was computed. [2018-11-18 16:19:35,571 INFO L428 ceAbstractionStarter]: At program point fabs_doubleENTRY(lines 25 39) the Hoare annotation is: true [2018-11-18 16:19:35,572 INFO L425 ceAbstractionStarter]: For program point fabs_doubleFINAL(lines 25 39) no Hoare annotation was computed. [2018-11-18 16:19:35,572 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:19:35,572 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:19:35,572 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:19:35,572 INFO L425 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 14 24) no Hoare annotation was computed. [2018-11-18 16:19:35,572 INFO L425 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 14 24) no Hoare annotation was computed. [2018-11-18 16:19:35,572 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-11-18 16:19:35,572 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 21) the Hoare annotation is: (= |__signbit_double_#in~x| __signbit_double_~x) [2018-11-18 16:19:35,572 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 21) no Hoare annotation was computed. [2018-11-18 16:19:35,572 INFO L428 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 14 24) the Hoare annotation is: true [2018-11-18 16:19:35,573 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:19:35,573 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 16:19:35,573 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:19:35,573 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:19:35,573 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 41 57) the Hoare annotation is: true [2018-11-18 16:19:35,573 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 41 57) no Hoare annotation was computed. [2018-11-18 16:19:35,573 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 16:19:35,573 INFO L425 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-11-18 16:19:35,573 INFO L421 ceAbstractionStarter]: At program point L51-1(line 51) the Hoare annotation is: (and |main_#t~short8| (exists ((|v_q#valueAsBitvector_5| (_ BitVec 64)) (v_prenex_6 (_ BitVec 64))) (and (= (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) v_prenex_6)) ((_ extract 31 0) |v_q#valueAsBitvector_5|)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0) (= (fp ((_ extract 63 63) v_prenex_6) ((_ extract 62 52) v_prenex_6) ((_ extract 51 0) v_prenex_6)) (fp.neg (_ +zero 11 53))))) (= main_~x~0 (fp.neg (_ +zero 11 53)))) [2018-11-18 16:19:35,574 INFO L425 ceAbstractionStarter]: For program point L51-2(line 51) no Hoare annotation was computed. [2018-11-18 16:19:35,574 INFO L421 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 11 53))) [2018-11-18 16:19:35,574 INFO L425 ceAbstractionStarter]: For program point L48-1(line 48) no Hoare annotation was computed. [2018-11-18 16:19:35,574 INFO L425 ceAbstractionStarter]: For program point L51-4(lines 51 54) no Hoare annotation was computed. [2018-11-18 16:19:35,574 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2018-11-18 16:19:35,574 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 41 57) no Hoare annotation was computed. [2018-11-18 16:19:35,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:19:35 BoogieIcfgContainer [2018-11-18 16:19:35,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:19:35,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:19:35,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:19:35,584 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:19:35,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:19:31" (3/4) ... [2018-11-18 16:19:35,587 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:19:35,591 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-11-18 16:19:35,592 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:19:35,592 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-11-18 16:19:35,592 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:19:35,596 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-18 16:19:35,596 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 16:19:35,596 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:19:35,613 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 16:19:35,614 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 16:19:35,628 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f2e62c71-03d6-4f84-a532-1780425395cd/bin-2019/uautomizer/witness.graphml [2018-11-18 16:19:35,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:19:35,629 INFO L168 Benchmark]: Toolchain (without parser) took 4326.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 951.9 MB in the beginning and 897.1 MB in the end (delta: 54.8 MB). Peak memory consumption was 173.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:19:35,629 INFO L168 Benchmark]: CDTParser took 0.17 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 16:19:35,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.64 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:19:35,630 INFO L168 Benchmark]: Boogie Preprocessor took 32.70 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:19:35,630 INFO L168 Benchmark]: RCFGBuilder took 261.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:19:35,631 INFO L168 Benchmark]: TraceAbstraction took 3799.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 903.8 MB in the end (delta: 178.5 MB). Peak memory consumption was 178.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:19:35,632 INFO L168 Benchmark]: Witness Printer took 44.58 ms. Allocated memory is still 1.1 GB. Free memory was 903.8 MB in the beginning and 897.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:19:35,634 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 185.64 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.70 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 261.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3799.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 903.8 MB in the end (delta: 178.5 MB). Peak memory consumption was 178.5 MB. Max. memory is 11.5 GB. * Witness Printer took 44.58 ms. Allocated memory is still 1.1 GB. Free memory was 903.8 MB in the beginning and 897.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 52]: 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: 27]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 69 SDtfs, 23 SDslu, 288 SDs, 0 SdLazy, 151 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 61 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 20 QuantifiedInterpolants, 17534 SizeOfPredicates, 12 NumberOfNonLiveVariables, 179 ConjunctsInSsa, 31 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...