./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 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/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_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/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_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/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_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/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 0.1.23-0cd3be1 [2018-11-28 12:55:26,786 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:55:26,787 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:55:26,795 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:55:26,795 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:55:26,796 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:55:26,797 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:55:26,798 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:55:26,799 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:55:26,800 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:55:26,800 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:55:26,800 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:55:26,801 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:55:26,802 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:55:26,802 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:55:26,803 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:55:26,804 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:55:26,804 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:55:26,806 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:55:26,807 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:55:26,807 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:55:26,808 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:55:26,809 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:55:26,809 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:55:26,809 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:55:26,810 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:55:26,810 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:55:26,811 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:55:26,811 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:55:26,811 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:55:26,812 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:55:26,812 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:55:26,812 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:55:26,812 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:55:26,812 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:55:26,813 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:55:26,813 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:55:26,823 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:55:26,823 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:55:26,824 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:55:26,824 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:55:26,825 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:55:26,825 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:55:26,825 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:55:26,825 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:55:26,825 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:55:26,825 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:55:26,826 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:55:26,826 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:55:26,826 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:55:26,826 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:55:26,826 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:55:26,826 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:55:26,827 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:55:26,827 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:55:26,827 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:55:26,827 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:55:26,827 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:55:26,827 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:55:26,828 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:55:26,828 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:55:26,828 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:55:26,828 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:55:26,828 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:55:26,828 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:55:26,828 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:55:26,829 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:55:26,829 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_48feb137-64d8-4ffa-9efe-0a959166b8f8/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 [2018-11-28 12:55:26,852 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:55:26,861 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:55:26,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:55:26,864 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:55:26,864 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:55:26,865 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-11-28 12:55:26,903 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/data/298cf3b57/2e74a94c7f2d4f019941e72e2254bb64/FLAGd192525aa [2018-11-28 12:55:27,296 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:55:27,296 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-11-28 12:55:27,300 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/data/298cf3b57/2e74a94c7f2d4f019941e72e2254bb64/FLAGd192525aa [2018-11-28 12:55:27,308 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/data/298cf3b57/2e74a94c7f2d4f019941e72e2254bb64 [2018-11-28 12:55:27,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:55:27,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:55:27,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:55:27,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:55:27,314 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:55:27,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:55:27" (1/1) ... [2018-11-28 12:55:27,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377c104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27, skipping insertion in model container [2018-11-28 12:55:27,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:55:27" (1/1) ... [2018-11-28 12:55:27,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:55:27,336 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:55:27,463 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:55:27,466 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:55:27,489 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:55:27,535 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:55:27,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27 WrapperNode [2018-11-28 12:55:27,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:55:27,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:55:27,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:55:27,536 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:55:27,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27" (1/1) ... [2018-11-28 12:55:27,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27" (1/1) ... [2018-11-28 12:55:27,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:55:27,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:55:27,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:55:27,554 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:55:27,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27" (1/1) ... [2018-11-28 12:55:27,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27" (1/1) ... [2018-11-28 12:55:27,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27" (1/1) ... [2018-11-28 12:55:27,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27" (1/1) ... [2018-11-28 12:55:27,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27" (1/1) ... [2018-11-28 12:55:27,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27" (1/1) ... [2018-11-28 12:55:27,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27" (1/1) ... [2018-11-28 12:55:27,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:55:27,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:55:27,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:55:27,575 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:55:27,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:55:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 12:55:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:55:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:55:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:55:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 12:55:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:55:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-28 12:55:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-28 12:55:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:55:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:55:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:55:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:55:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:55:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:55:27,783 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:55:27,783 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 12:55:27,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:55:27 BoogieIcfgContainer [2018-11-28 12:55:27,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:55:27,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:55:27,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:55:27,786 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:55:27,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:55:27" (1/3) ... [2018-11-28 12:55:27,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe2dc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:55:27, skipping insertion in model container [2018-11-28 12:55:27,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:27" (2/3) ... [2018-11-28 12:55:27,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe2dc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:55:27, skipping insertion in model container [2018-11-28 12:55:27,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:55:27" (3/3) ... [2018-11-28 12:55:27,789 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-11-28 12:55:27,797 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:55:27,802 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:55:27,811 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:55:27,829 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:55:27,829 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:55:27,829 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:55:27,829 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:55:27,829 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:55:27,830 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:55:27,830 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:55:27,830 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:55:27,830 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:55:27,842 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-28 12:55:27,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 12:55:27,845 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:55:27,846 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:55:27,848 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:55:27,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:55:27,851 INFO L82 PathProgramCache]: Analyzing trace with hash 593324774, now seen corresponding path program 1 times [2018-11-28 12:55:27,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:55:27,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:55:27,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:55:27,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:55:27,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:55:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:55:27,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:55:27,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:55:27,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:55:27,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:55:27,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:55:27,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:55:27,944 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-28 12:55:27,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:55:27,956 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-11-28 12:55:27,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:55:27,957 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-28 12:55:27,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:55:27,963 INFO L225 Difference]: With dead ends: 76 [2018-11-28 12:55:27,963 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 12:55:27,965 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 [2018-11-28 12:55:27,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 12:55:27,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-28 12:55:27,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 12:55:27,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-11-28 12:55:27,988 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-11-28 12:55:27,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:55:27,988 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-11-28 12:55:27,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:55:27,988 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-11-28 12:55:27,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 12:55:27,989 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:55:27,989 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:55:27,989 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:55:27,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:55:27,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1268028223, now seen corresponding path program 1 times [2018-11-28 12:55:27,990 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:55:27,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:55:27,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:55:27,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:55:27,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:55:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:55:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:55:28,049 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:55:28,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:55:28 BoogieIcfgContainer [2018-11-28 12:55:28,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:55:28,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:55:28,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:55:28,066 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:55:28,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:55:27" (3/4) ... [2018-11-28 12:55:28,068 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:55:28,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:55:28,069 INFO L168 Benchmark]: Toolchain (without parser) took 758.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 959.8 MB in the beginning and 1.1 GB in the end (delta: -128.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:55:28,070 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:55:28,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 959.8 MB in the beginning and 1.2 GB in the end (delta: -194.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:55:28,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:55:28,071 INFO L168 Benchmark]: Boogie Preprocessor took 20.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:55:28,071 INFO L168 Benchmark]: RCFGBuilder took 209.04 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:55:28,072 INFO L168 Benchmark]: TraceAbstraction took 281.38 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:55:28,072 INFO L168 Benchmark]: Witness Printer took 2.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:55:28,075 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 224.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 959.8 MB in the beginning and 1.2 GB in the end (delta: -194.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 209.04 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 281.38 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.95 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 0.1.23-0cd3be1 [2018-11-28 12:55:29,471 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:55:29,471 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:55:29,479 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:55:29,479 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:55:29,480 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:55:29,480 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:55:29,481 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:55:29,482 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:55:29,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:55:29,484 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:55:29,484 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:55:29,484 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:55:29,485 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:55:29,486 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:55:29,486 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:55:29,487 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:55:29,488 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:55:29,489 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:55:29,490 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:55:29,491 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:55:29,492 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:55:29,493 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:55:29,494 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:55:29,494 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:55:29,494 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:55:29,495 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:55:29,496 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:55:29,496 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:55:29,497 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:55:29,497 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:55:29,497 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:55:29,498 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:55:29,498 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:55:29,498 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:55:29,499 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:55:29,499 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 12:55:29,509 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:55:29,509 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:55:29,510 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:55:29,510 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:55:29,510 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:55:29,510 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:55:29,511 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:55:29,511 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:55:29,511 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:55:29,511 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:55:29,511 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:55:29,511 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:55:29,511 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:55:29,512 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:55:29,512 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:55:29,512 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:55:29,512 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:55:29,512 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:55:29,512 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:55:29,512 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:55:29,513 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:55:29,513 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:55:29,513 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:55:29,513 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:55:29,513 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:55:29,513 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:55:29,513 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:55:29,514 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:55:29,514 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:55:29,514 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:55:29,514 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:55:29,514 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 12:55:29,514 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_48feb137-64d8-4ffa-9efe-0a959166b8f8/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 [2018-11-28 12:55:29,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:55:29,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:55:29,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:55:29,548 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:55:29,549 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:55:29,549 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-11-28 12:55:29,584 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/data/7992459d7/59c6416f3f884fcba65f9044704a09ec/FLAGaf190506e [2018-11-28 12:55:29,978 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:55:29,978 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-11-28 12:55:29,982 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/data/7992459d7/59c6416f3f884fcba65f9044704a09ec/FLAGaf190506e [2018-11-28 12:55:29,990 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/data/7992459d7/59c6416f3f884fcba65f9044704a09ec [2018-11-28 12:55:29,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:55:29,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:55:29,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:55:29,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:55:29,996 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:55:29,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:55:29" (1/1) ... [2018-11-28 12:55:29,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d2fc0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:29, skipping insertion in model container [2018-11-28 12:55:29,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:55:29" (1/1) ... [2018-11-28 12:55:30,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:55:30,019 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:55:30,140 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:55:30,145 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:55:30,165 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:55:30,184 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:55:30,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30 WrapperNode [2018-11-28 12:55:30,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:55:30,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:55:30,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:55:30,186 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:55:30,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30" (1/1) ... [2018-11-28 12:55:30,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30" (1/1) ... [2018-11-28 12:55:30,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:55:30,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:55:30,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:55:30,205 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:55:30,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30" (1/1) ... [2018-11-28 12:55:30,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30" (1/1) ... [2018-11-28 12:55:30,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30" (1/1) ... [2018-11-28 12:55:30,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30" (1/1) ... [2018-11-28 12:55:30,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30" (1/1) ... [2018-11-28 12:55:30,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30" (1/1) ... [2018-11-28 12:55:30,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30" (1/1) ... [2018-11-28 12:55:30,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:55:30,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:55:30,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:55:30,273 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:55:30,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:55:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 12:55:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:55:30,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:55:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:55:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 12:55:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 12:55:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-28 12:55:30,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-28 12:55:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:55:30,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:55:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:55:30,307 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:55:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 12:55:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:55:30,518 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:55:31,123 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:55:31,123 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 12:55:31,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:55:31 BoogieIcfgContainer [2018-11-28 12:55:31,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:55:31,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:55:31,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:55:31,126 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:55:31,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:55:29" (1/3) ... [2018-11-28 12:55:31,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e94212a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:55:31, skipping insertion in model container [2018-11-28 12:55:31,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:55:30" (2/3) ... [2018-11-28 12:55:31,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e94212a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:55:31, skipping insertion in model container [2018-11-28 12:55:31,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:55:31" (3/3) ... [2018-11-28 12:55:31,128 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-11-28 12:55:31,134 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:55:31,138 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:55:31,146 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:55:31,166 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:55:31,166 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:55:31,166 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:55:31,166 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:55:31,166 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:55:31,167 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:55:31,167 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:55:31,167 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:55:31,167 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:55:31,179 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-28 12:55:31,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 12:55:31,183 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:55:31,184 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:55:31,185 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:55:31,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:55:31,188 INFO L82 PathProgramCache]: Analyzing trace with hash 593324774, now seen corresponding path program 1 times [2018-11-28 12:55:31,191 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:55:31,191 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 12:55:31,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:55:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:55:31,238 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:55:31,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:55:31,249 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:55:31,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:55:31,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:55:31,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:55:31,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:55:31,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:55:31,269 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-28 12:55:31,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:55:31,281 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-11-28 12:55:31,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:55:31,281 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-28 12:55:31,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:55:31,287 INFO L225 Difference]: With dead ends: 76 [2018-11-28 12:55:31,287 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 12:55:31,289 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 [2018-11-28 12:55:31,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 12:55:31,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-28 12:55:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 12:55:31,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-11-28 12:55:31,317 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-11-28 12:55:31,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:55:31,317 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-11-28 12:55:31,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:55:31,318 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-11-28 12:55:31,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 12:55:31,318 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:55:31,319 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:55:31,319 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:55:31,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:55:31,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1268028223, now seen corresponding path program 1 times [2018-11-28 12:55:31,320 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:55:31,320 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 12:55:31,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:55:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:55:31,371 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:55:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:55:31,486 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:55:31,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:55:31,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:55:31,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:55:31,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:55:31,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:55:31,494 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand 7 states. [2018-11-28 12:55:33,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:55:33,949 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2018-11-28 12:55:33,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 12:55:33,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-28 12:55:33,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:55:33,952 INFO L225 Difference]: With dead ends: 62 [2018-11-28 12:55:33,952 INFO L226 Difference]: Without dead ends: 30 [2018-11-28 12:55:33,952 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 [2018-11-28 12:55:33,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-28 12:55:33,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-11-28 12:55:33,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 12:55:33,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-11-28 12:55:33,956 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 19 [2018-11-28 12:55:33,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:55:33,956 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-11-28 12:55:33,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:55:33,956 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-28 12:55:33,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:55:33,957 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:55:33,957 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] [2018-11-28 12:55:33,957 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:55:33,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:55:33,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1067163641, now seen corresponding path program 1 times [2018-11-28 12:55:33,958 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:55:33,958 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 12:55:33,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:55:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:55:34,053 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:55:35,855 WARN L180 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-28 12:55:35,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:55:35,860 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:55:35,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:55:35,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:55:35,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:55:35,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:55:35,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:55:35,869 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 6 states. [2018-11-28 12:55:38,775 WARN L180 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 12:55:39,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:55:39,631 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-11-28 12:55:39,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:55:39,638 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-11-28 12:55:39,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:55:39,638 INFO L225 Difference]: With dead ends: 34 [2018-11-28 12:55:39,638 INFO L226 Difference]: Without dead ends: 25 [2018-11-28 12:55:39,639 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:55:39,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-28 12:55:39,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-28 12:55:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 12:55:39,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-11-28 12:55:39,642 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2018-11-28 12:55:39,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:55:39,643 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-11-28 12:55:39,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:55:39,643 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-11-28 12:55:39,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 12:55:39,643 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:55:39,643 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] [2018-11-28 12:55:39,644 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:55:39,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:55:39,644 INFO L82 PathProgramCache]: Analyzing trace with hash -232086029, now seen corresponding path program 1 times [2018-11-28 12:55:39,644 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:55:39,644 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/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 [2018-11-28 12:55:39,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:55:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:55:39,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:55:39,765 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 [2018-11-28 12:55:39,767 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 [2018-11-28 12:55:39,777 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 [2018-11-28 12:55:39,777 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 12:55:39,780 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:55:39,782 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:55:39,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:55:39,787 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2018-11-28 12:55:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:55:39,845 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:55:39,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:55:39,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:55:39,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:55:39,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:55:39,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:55:39,856 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 8 states. [2018-11-28 12:55:40,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:55:40,068 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-11-28 12:55:40,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:55:40,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-11-28 12:55:40,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:55:40,069 INFO L225 Difference]: With dead ends: 34 [2018-11-28 12:55:40,069 INFO L226 Difference]: Without dead ends: 25 [2018-11-28 12:55:40,069 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:55:40,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-28 12:55:40,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-28 12:55:40,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 12:55:40,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-11-28 12:55:40,072 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2018-11-28 12:55:40,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:55:40,073 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-11-28 12:55:40,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:55:40,073 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-11-28 12:55:40,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 12:55:40,073 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:55:40,073 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] [2018-11-28 12:55:40,074 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:55:40,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:55:40,074 INFO L82 PathProgramCache]: Analyzing trace with hash 785443165, now seen corresponding path program 1 times [2018-11-28 12:55:40,074 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:55:40,074 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/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 [2018-11-28 12:55:40,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:55:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:55:40,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:55:40,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:55:40,236 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:55:40,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:55:40,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:55:40,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:55:40,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:55:40,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:55:40,245 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 6 states. [2018-11-28 12:55:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:55:40,732 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-11-28 12:55:40,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:55:40,733 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-11-28 12:55:40,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:55:40,733 INFO L225 Difference]: With dead ends: 30 [2018-11-28 12:55:40,733 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:55:40,733 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 [2018-11-28 12:55:40,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:55:40,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:55:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:55:40,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:55:40,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-11-28 12:55:40,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:55:40,734 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:55:40,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:55:40,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:55:40,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:55:40,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:55:40,880 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:55:40,881 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:55:40,881 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:55:40,881 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-11-28 12:55:40,881 INFO L448 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-11-28 12:55:40,881 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-11-28 12:55:40,881 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-11-28 12:55:40,881 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-11-28 12:55:40,881 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-11-28 12:55:40,881 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-11-28 12:55:40,881 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-28 12:55:40,882 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-28 12:55:40,882 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-11-28 12:55:40,882 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2018-11-28 12:55:40,882 INFO L448 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2018-11-28 12:55:40,882 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-11-28 12:55:40,882 INFO L448 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-11-28 12:55:40,882 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-11-28 12:55:40,882 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-11-28 12:55:40,882 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-11-28 12:55:40,883 INFO L451 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 19 81) the Hoare annotation is: true [2018-11-28 12:55:40,883 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-28 12:55:40,883 INFO L448 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 19 81) no Hoare annotation was computed. [2018-11-28 12:55:40,883 INFO L448 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 19 81) no Hoare annotation was computed. [2018-11-28 12:55:40,884 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-11-28 12:55:40,884 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-11-28 12:55:40,884 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)) [2018-11-28 12:55:40,884 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2018-11-28 12:55:40,884 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-11-28 12:55:40,884 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-11-28 12:55:40,884 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:55:40,884 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) [2018-11-28 12:55:40,885 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:55:40,885 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:55:40,885 INFO L448 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-11-28 12:55:40,885 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 98) no Hoare annotation was computed. [2018-11-28 12:55:40,885 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 83 101) the Hoare annotation is: true [2018-11-28 12:55:40,885 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 83 101) no Hoare annotation was computed. [2018-11-28 12:55:40,885 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)))) [2018-11-28 12:55:40,885 INFO L448 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-11-28 12:55:40,886 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2018-11-28 12:55:40,886 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 83 101) no Hoare annotation was computed. [2018-11-28 12:55:40,893 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 12:55:40,897 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 12:55:40,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:55:40 BoogieIcfgContainer [2018-11-28 12:55:40,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:55:40,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:55:40,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:55:40,900 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:55:40,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:55:31" (3/4) ... [2018-11-28 12:55:40,904 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:55:40,910 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:55:40,910 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-11-28 12:55:40,910 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:55:40,914 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-28 12:55:40,914 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 12:55:40,914 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:55:40,932 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil) || \old(x) == x [2018-11-28 12:55:40,950 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_48feb137-64d8-4ffa-9efe-0a959166b8f8/bin-2019/uautomizer/witness.graphml [2018-11-28 12:55:40,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:55:40,950 INFO L168 Benchmark]: Toolchain (without parser) took 10958.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 943.4 MB in the beginning and 932.2 MB in the end (delta: 11.2 MB). Peak memory consumption was 176.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:55:40,951 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:55:40,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.51 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:55:40,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.73 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. [2018-11-28 12:55:40,951 INFO L168 Benchmark]: Boogie Preprocessor took 68.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 927.3 MB in the beginning and 1.2 GB in the end (delta: -227.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:55:40,952 INFO L168 Benchmark]: RCFGBuilder took 850.42 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: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:55:40,952 INFO L168 Benchmark]: TraceAbstraction took 9775.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.9 MB in the end (delta: 177.7 MB). Peak memory consumption was 177.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:55:40,953 INFO L168 Benchmark]: Witness Printer took 50.46 ms. Allocated memory is still 1.2 GB. Free memory was 938.9 MB in the beginning and 932.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:55:40,954 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 191.51 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 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 18.73 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 68.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 927.3 MB in the beginning and 1.2 GB in the end (delta: -227.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 850.42 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: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9775.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.9 MB in the end (delta: 177.7 MB). Peak memory consumption was 177.7 MB. Max. memory is 11.5 GB. * Witness Printer took 50.46 ms. Allocated memory is still 1.2 GB. Free memory was 938.9 MB in the beginning and 932.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.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 [2018-11-28 12:55:40,957 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 12:55:40,957 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, 9.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 6.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 140 SDtfs, 176 SDslu, 250 SDs, 0 SdLazy, 201 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 80 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.4s 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, 0.1s 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...