./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/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 8be2489bdcd97218605067fa4593696f9050abdf ........................................................................................................................................................................................................................................................................................................... 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_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/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 8be2489bdcd97218605067fa4593696f9050abdf ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 17:11:22,605 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:11:22,605 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:11:22,611 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:11:22,612 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:11:22,612 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:11:22,613 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:11:22,614 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:11:22,614 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:11:22,615 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:11:22,615 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:11:22,615 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:11:22,616 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:11:22,616 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:11:22,617 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:11:22,617 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:11:22,618 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:11:22,618 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:11:22,619 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:11:22,620 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:11:22,621 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:11:22,621 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:11:22,622 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:11:22,623 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:11:22,623 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:11:22,623 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:11:22,624 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:11:22,624 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:11:22,624 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:11:22,625 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:11:22,625 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:11:22,625 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:11:22,626 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:11:22,626 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:11:22,626 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:11:22,627 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:11:22,627 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 17:11:22,634 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:11:22,634 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:11:22,634 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:11:22,634 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:11:22,635 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 17:11:22,635 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 17:11:22,635 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 17:11:22,635 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:11:22,635 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:11:22,635 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 17:11:22,635 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:11:22,635 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:11:22,635 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:11:22,636 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:11:22,636 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:11:22,636 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:11:22,636 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:11:22,636 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 17:11:22,636 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:11:22,636 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:11:22,636 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:11:22,636 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:11:22,636 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:11:22,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:11:22,637 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:11:22,637 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:11:22,637 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:11:22,637 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 17:11:22,637 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:11:22,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 17:11:22,637 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_4afc60ed-844b-4695-9777-d79b66cf572a/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 -> 8be2489bdcd97218605067fa4593696f9050abdf [2018-12-08 17:11:22,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:11:22,665 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:11:22,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:11:22,669 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:11:22,669 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:11:22,670 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-08 17:11:22,717 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/data/3a609ad7b/d3bc1323281743ea8a4ffdb5551ebe8d/FLAG169694855 [2018-12-08 17:11:23,186 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:11:23,186 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-08 17:11:23,190 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/data/3a609ad7b/d3bc1323281743ea8a4ffdb5551ebe8d/FLAG169694855 [2018-12-08 17:11:23,198 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/data/3a609ad7b/d3bc1323281743ea8a4ffdb5551ebe8d [2018-12-08 17:11:23,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:11:23,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:11:23,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:11:23,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:11:23,203 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:11:23,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:11:23" (1/1) ... [2018-12-08 17:11:23,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697bc169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23, skipping insertion in model container [2018-12-08 17:11:23,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:11:23" (1/1) ... [2018-12-08 17:11:23,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:11:23,220 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:11:23,315 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:11:23,317 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:11:23,337 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:11:23,349 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:11:23,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23 WrapperNode [2018-12-08 17:11:23,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:11:23,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:11:23,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:11:23,350 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:11:23,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23" (1/1) ... [2018-12-08 17:11:23,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23" (1/1) ... [2018-12-08 17:11:23,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:11:23,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:11:23,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:11:23,396 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:11:23,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23" (1/1) ... [2018-12-08 17:11:23,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23" (1/1) ... [2018-12-08 17:11:23,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23" (1/1) ... [2018-12-08 17:11:23,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23" (1/1) ... [2018-12-08 17:11:23,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23" (1/1) ... [2018-12-08 17:11:23,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23" (1/1) ... [2018-12-08 17:11:23,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23" (1/1) ... [2018-12-08 17:11:23,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:11:23,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:11:23,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:11:23,416 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:11:23,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:11:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 17:11:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 17:11:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 17:11:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 17:11:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 17:11:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 17:11:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-08 17:11:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-08 17:11:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:11:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:11:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 17:11:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 17:11:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 17:11:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 17:11:23,607 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:11:23,607 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 17:11:23,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:11:23 BoogieIcfgContainer [2018-12-08 17:11:23,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:11:23,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:11:23,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:11:23,611 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:11:23,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:11:23" (1/3) ... [2018-12-08 17:11:23,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f41e140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:11:23, skipping insertion in model container [2018-12-08 17:11:23,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:23" (2/3) ... [2018-12-08 17:11:23,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f41e140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:11:23, skipping insertion in model container [2018-12-08 17:11:23,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:11:23" (3/3) ... [2018-12-08 17:11:23,614 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-12-08 17:11:23,622 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:11:23,628 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 17:11:23,640 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 17:11:23,659 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 17:11:23,660 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:11:23,660 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:11:23,660 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:11:23,660 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:11:23,660 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:11:23,660 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:11:23,660 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:11:23,660 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:11:23,671 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-08 17:11:23,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 17:11:23,676 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:11:23,677 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:11:23,679 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:11:23,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:11:23,684 INFO L82 PathProgramCache]: Analyzing trace with hash 593324774, now seen corresponding path program 1 times [2018-12-08 17:11:23,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:11:23,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:11:23,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:11:23,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:11:23,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:11:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:11:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:11:23,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:11:23,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 17:11:23,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 17:11:23,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 17:11:23,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 17:11:23,784 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-08 17:11:23,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:11:23,796 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-12-08 17:11:23,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 17:11:23,797 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-08 17:11:23,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:11:23,803 INFO L225 Difference]: With dead ends: 76 [2018-12-08 17:11:23,803 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 17:11:23,805 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 17:11:23,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 17:11:23,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-08 17:11:23,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-08 17:11:23,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-12-08 17:11:23,826 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-12-08 17:11:23,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:11:23,827 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-12-08 17:11:23,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 17:11:23,827 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-12-08 17:11:23,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 17:11:23,827 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:11:23,827 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:11:23,828 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:11:23,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:11:23,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1268028223, now seen corresponding path program 1 times [2018-12-08 17:11:23,828 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:11:23,828 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:11:23,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:11:23,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:11:23,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:11:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:11:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:11:23,887 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 17:11:23,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:11:23 BoogieIcfgContainer [2018-12-08 17:11:23,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:11:23,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:11:23,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:11:23,906 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:11:23,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:11:23" (3/4) ... [2018-12-08 17:11:23,908 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 17:11:23,908 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:11:23,909 INFO L168 Benchmark]: Toolchain (without parser) took 708.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 961.4 MB in the beginning and 1.1 GB in the end (delta: -114.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-12-08 17:11:23,910 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:11:23,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.63 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 945.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-08 17:11:23,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-12-08 17:11:23,911 INFO L168 Benchmark]: Boogie Preprocessor took 19.87 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-08 17:11:23,912 INFO L168 Benchmark]: RCFGBuilder took 191.48 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-12-08 17:11:23,912 INFO L168 Benchmark]: TraceAbstraction took 296.97 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: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2018-12-08 17:11:23,913 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. [2018-12-08 17:11:23,914 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 148.63 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 945.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.87 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.48 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 296.97 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: 29.6 MB). Peak memory consumption was 29.6 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: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of someUnaryDOUBLEoperation at line 91, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 95. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418244, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double x = -0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] CALL, EXPR ceil_double(x) VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=10737418245] [L29] COND TRUE j0 < 20 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [\old(x)=10737418245, \result=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L92] RET, EXPR ceil_double(x) VAL [ceil_double(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L92] double res = ceil_double(x); [L95] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418245, x=10737418245] [L96] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418245, x=10737418245] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 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: 56 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 17:11:25,200 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:11:25,201 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:11:25,207 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:11:25,207 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:11:25,208 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:11:25,209 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:11:25,209 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:11:25,210 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:11:25,211 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:11:25,211 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:11:25,211 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:11:25,212 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:11:25,212 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:11:25,213 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:11:25,213 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:11:25,214 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:11:25,215 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:11:25,216 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:11:25,216 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:11:25,217 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:11:25,218 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:11:25,219 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:11:25,219 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:11:25,219 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:11:25,220 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:11:25,220 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:11:25,221 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:11:25,221 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:11:25,222 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:11:25,222 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:11:25,222 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:11:25,223 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:11:25,223 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:11:25,223 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:11:25,224 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:11:25,224 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 17:11:25,231 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:11:25,232 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:11:25,232 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:11:25,232 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:11:25,233 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 17:11:25,233 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 17:11:25,233 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 17:11:25,233 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:11:25,233 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:11:25,233 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:11:25,234 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:11:25,234 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:11:25,234 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:11:25,234 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:11:25,234 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 17:11:25,234 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 17:11:25,234 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:11:25,234 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:11:25,235 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 17:11:25,235 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:11:25,235 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:11:25,235 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:11:25,235 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:11:25,235 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:11:25,235 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:11:25,236 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:11:25,236 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:11:25,236 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:11:25,236 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 17:11:25,236 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:11:25,236 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 17:11:25,236 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 17:11:25,237 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_4afc60ed-844b-4695-9777-d79b66cf572a/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 -> 8be2489bdcd97218605067fa4593696f9050abdf [2018-12-08 17:11:25,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:11:25,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:11:25,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:11:25,271 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:11:25,272 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:11:25,272 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-08 17:11:25,313 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/data/f3c72a30e/4743a5bf7787412f8afc35f950324ebf/FLAG3ebd2bc71 [2018-12-08 17:11:25,746 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:11:25,746 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-08 17:11:25,750 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/data/f3c72a30e/4743a5bf7787412f8afc35f950324ebf/FLAG3ebd2bc71 [2018-12-08 17:11:25,759 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/data/f3c72a30e/4743a5bf7787412f8afc35f950324ebf [2018-12-08 17:11:25,761 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:11:25,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:11:25,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:11:25,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:11:25,766 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:11:25,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:11:25" (1/1) ... [2018-12-08 17:11:25,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdf94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25, skipping insertion in model container [2018-12-08 17:11:25,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:11:25" (1/1) ... [2018-12-08 17:11:25,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:11:25,785 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:11:25,880 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:11:25,884 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:11:25,903 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:11:25,919 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:11:25,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25 WrapperNode [2018-12-08 17:11:25,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:11:25,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:11:25,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:11:25,920 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:11:25,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25" (1/1) ... [2018-12-08 17:11:25,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25" (1/1) ... [2018-12-08 17:11:25,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:11:25,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:11:25,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:11:25,937 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:11:25,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25" (1/1) ... [2018-12-08 17:11:25,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25" (1/1) ... [2018-12-08 17:11:25,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25" (1/1) ... [2018-12-08 17:11:25,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25" (1/1) ... [2018-12-08 17:11:25,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25" (1/1) ... [2018-12-08 17:11:25,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25" (1/1) ... [2018-12-08 17:11:26,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25" (1/1) ... [2018-12-08 17:11:26,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:11:26,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:11:26,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:11:26,002 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:11:26,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:11:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-08 17:11:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 17:11:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 17:11:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 17:11:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 17:11:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-08 17:11:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-08 17:11:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-08 17:11:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:11:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:11:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 17:11:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 17:11:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 17:11:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 17:11:26,200 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:11:26,784 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:11:26,784 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 17:11:26,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:11:26 BoogieIcfgContainer [2018-12-08 17:11:26,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:11:26,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:11:26,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:11:26,787 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:11:26,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:11:25" (1/3) ... [2018-12-08 17:11:26,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2a9084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:11:26, skipping insertion in model container [2018-12-08 17:11:26,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:11:25" (2/3) ... [2018-12-08 17:11:26,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2a9084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:11:26, skipping insertion in model container [2018-12-08 17:11:26,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:11:26" (3/3) ... [2018-12-08 17:11:26,789 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-12-08 17:11:26,794 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:11:26,799 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 17:11:26,808 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 17:11:26,824 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 17:11:26,824 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:11:26,824 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:11:26,824 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:11:26,825 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:11:26,825 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:11:26,825 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:11:26,825 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:11:26,825 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:11:26,834 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-08 17:11:26,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 17:11:26,837 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:11:26,838 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:11:26,839 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:11:26,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:11:26,842 INFO L82 PathProgramCache]: Analyzing trace with hash 593324774, now seen corresponding path program 1 times [2018-12-08 17:11:26,844 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 17:11:26,844 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-08 17:11:26,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:11:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:11:26,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:11:26,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:11:26,899 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 17:11:26,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:11:26,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 17:11:26,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 17:11:26,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 17:11:26,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 17:11:26,917 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-08 17:11:26,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:11:26,929 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-12-08 17:11:26,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 17:11:26,930 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-08 17:11:26,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:11:26,936 INFO L225 Difference]: With dead ends: 76 [2018-12-08 17:11:26,936 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 17:11:26,938 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 17:11:26,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 17:11:26,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-08 17:11:26,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-08 17:11:26,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-12-08 17:11:26,960 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-12-08 17:11:26,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:11:26,960 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-12-08 17:11:26,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 17:11:26,960 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-12-08 17:11:26,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 17:11:26,961 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:11:26,961 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:11:26,961 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:11:26,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:11:26,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1268028223, now seen corresponding path program 1 times [2018-12-08 17:11:26,961 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 17:11:26,961 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-08 17:11:26,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:11:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:11:27,002 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:11:27,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:11:27,133 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 17:11:27,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:11:27,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 17:11:27,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 17:11:27,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 17:11:27,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 17:11:27,146 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand 7 states. [2018-12-08 17:11:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:11:29,693 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2018-12-08 17:11:29,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 17:11:29,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-08 17:11:29,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:11:29,695 INFO L225 Difference]: With dead ends: 62 [2018-12-08 17:11:29,696 INFO L226 Difference]: Without dead ends: 30 [2018-12-08 17:11:29,696 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-12-08 17:11:29,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-08 17:11:29,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-12-08 17:11:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-08 17:11:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-12-08 17:11:29,700 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 19 [2018-12-08 17:11:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:11:29,701 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-12-08 17:11:29,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 17:11:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-12-08 17:11:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 17:11:29,702 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:11:29,702 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:11:29,702 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:11:29,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:11:29,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1067163641, now seen corresponding path program 1 times [2018-12-08 17:11:29,703 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 17:11:29,703 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-08 17:11:29,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:11:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:11:29,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:11:31,598 WARN L180 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-08 17:11:31,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:11:31,603 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 17:11:31,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:11:31,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:11:31,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:11:31,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:11:31,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:11:31,613 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 6 states. [2018-12-08 17:11:34,563 WARN L180 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-08 17:11:35,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:11:35,435 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-12-08 17:11:35,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 17:11:35,443 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-12-08 17:11:35,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:11:35,443 INFO L225 Difference]: With dead ends: 34 [2018-12-08 17:11:35,443 INFO L226 Difference]: Without dead ends: 25 [2018-12-08 17:11:35,444 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-08 17:11:35,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-08 17:11:35,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-12-08 17:11:35,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-08 17:11:35,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-12-08 17:11:35,446 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2018-12-08 17:11:35,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:11:35,447 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-12-08 17:11:35,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:11:35,447 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-12-08 17:11:35,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 17:11:35,447 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:11:35,447 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:11:35,447 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:11:35,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:11:35,448 INFO L82 PathProgramCache]: Analyzing trace with hash -232086029, now seen corresponding path program 1 times [2018-12-08 17:11:35,448 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 17:11:35,448 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-08 17:11:35,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:11:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:11:35,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:11:35,571 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2018-12-08 17:11:35,574 INFO L478 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 39 treesize of output 36 [2018-12-08 17:11:35,584 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 15 [2018-12-08 17:11:35,584 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 17:11:35,587 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 17:11:35,589 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 17:11:35,591 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 17:11:35,591 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2018-12-08 17:11:35,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:11:35,657 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 17:11:35,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:11:35,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 17:11:35,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 17:11:35,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 17:11:35,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:11:35,666 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 8 states. [2018-12-08 17:11:35,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:11:35,888 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-12-08 17:11:35,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 17:11:35,889 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-12-08 17:11:35,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:11:35,889 INFO L225 Difference]: With dead ends: 34 [2018-12-08 17:11:35,889 INFO L226 Difference]: Without dead ends: 25 [2018-12-08 17:11:35,890 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-12-08 17:11:35,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-08 17:11:35,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-12-08 17:11:35,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-08 17:11:35,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-12-08 17:11:35,892 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2018-12-08 17:11:35,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:11:35,892 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-12-08 17:11:35,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 17:11:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-12-08 17:11:35,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 17:11:35,893 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:11:35,893 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:11:35,893 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:11:35,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:11:35,893 INFO L82 PathProgramCache]: Analyzing trace with hash 785443165, now seen corresponding path program 1 times [2018-12-08 17:11:35,893 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 17:11:35,894 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-08 17:11:35,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:11:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:11:35,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:11:36,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:11:36,057 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 17:11:36,065 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:11:36,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:11:36,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:11:36,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:11:36,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:11:36,066 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 6 states. [2018-12-08 17:11:36,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:11:36,592 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-12-08 17:11:36,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 17:11:36,593 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-08 17:11:36,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:11:36,593 INFO L225 Difference]: With dead ends: 30 [2018-12-08 17:11:36,593 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 17:11:36,593 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-08 17:11:36,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 17:11:36,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 17:11:36,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 17:11:36,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 17:11:36,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-12-08 17:11:36,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:11:36,594 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 17:11:36,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:11:36,594 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 17:11:36,594 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 17:11:36,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 17:11:36,699 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 17:11:36,699 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 17:11:36,699 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 17:11:36,699 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-12-08 17:11:36,699 INFO L448 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-12-08 17:11:36,699 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-12-08 17:11:36,700 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-12-08 17:11:36,701 INFO L451 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 19 81) the Hoare annotation is: true [2018-12-08 17:11:36,701 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-12-08 17:11:36,701 INFO L448 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 19 81) no Hoare annotation was computed. [2018-12-08 17:11:36,701 INFO L448 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 19 81) no Hoare annotation was computed. [2018-12-08 17:11:36,701 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-12-08 17:11:36,701 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-12-08 17:11:36,701 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= |ceil_double_#in~x| ceil_double_~x)) [2018-12-08 17:11:36,701 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2018-12-08 17:11:36,701 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-12-08 17:11:36,701 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-12-08 17:11:36,701 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 17:11:36,701 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) [2018-12-08 17:11:36,701 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 17:11:36,702 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 17:11:36,702 INFO L448 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-12-08 17:11:36,702 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 98) no Hoare annotation was computed. [2018-12-08 17:11:36,702 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 83 101) the Hoare annotation is: true [2018-12-08 17:11:36,702 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 83 101) no Hoare annotation was computed. [2018-12-08 17:11:36,702 INFO L444 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= main_~x~0 (fp.neg (_ +zero 11 53)))) [2018-12-08 17:11:36,702 INFO L448 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-12-08 17:11:36,702 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2018-12-08 17:11:36,702 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 83 101) no Hoare annotation was computed. [2018-12-08 17:11:36,707 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:11:36,710 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:11:36,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:11:36 BoogieIcfgContainer [2018-12-08 17:11:36,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:11:36,712 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:11:36,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:11:36,712 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:11:36,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:11:26" (3/4) ... [2018-12-08 17:11:36,714 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 17:11:36,718 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 17:11:36,718 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-12-08 17:11:36,719 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 17:11:36,721 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-12-08 17:11:36,722 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-08 17:11:36,722 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 17:11:36,738 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil) || \old(x) == x [2018-12-08 17:11:36,751 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4afc60ed-844b-4695-9777-d79b66cf572a/bin-2019/uautomizer/witness.graphml [2018-12-08 17:11:36,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:11:36,752 INFO L168 Benchmark]: Toolchain (without parser) took 10989.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 944.7 MB in the beginning and 939.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 169.1 MB. Max. memory is 11.5 GB. [2018-12-08 17:11:36,752 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:11:36,752 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.72 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-12-08 17:11:36,753 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.24 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:11:36,753 INFO L168 Benchmark]: Boogie Preprocessor took 65.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 927.3 MB in the beginning and 1.2 GB in the end (delta: -225.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-08 17:11:36,753 INFO L168 Benchmark]: RCFGBuilder took 782.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-12-08 17:11:36,753 INFO L168 Benchmark]: TraceAbstraction took 9926.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 939.2 MB in the end (delta: 181.2 MB). Peak memory consumption was 181.2 MB. Max. memory is 11.5 GB. [2018-12-08 17:11:36,754 INFO L168 Benchmark]: Witness Printer took 39.74 ms. Allocated memory is still 1.2 GB. Free memory is still 939.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:11:36,755 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.72 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.24 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 927.3 MB in the beginning and 1.2 GB in the end (delta: -225.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 782.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9926.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 939.2 MB in the end (delta: 181.2 MB). Peak memory consumption was 181.2 MB. Max. memory is 11.5 GB. * Witness Printer took 39.74 ms. Allocated memory is still 1.2 GB. Free memory is still 939.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: 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: 22]: Loop Invariant [2018-12-08 17:11:36,757 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:11:36,757 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil) || \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. SAFE Result, 9.8s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 7.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 140 SDtfs, 176 SDslu, 250 SDs, 0 SdLazy, 201 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 80 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.5s 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, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 30 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 101 ConstructedInterpolants, 19 QuantifiedInterpolants, 13819 SizeOfPredicates, 15 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...