./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i --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_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/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 d83baf1cdb4ca03660244dae388672dd75d02b3f ......................................................................................................................................................................................................................................... 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_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/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 d83baf1cdb4ca03660244dae388672dd75d02b3f ................................................................................................................................................................................................................................................................................. 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 11:06:41,643 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:06:41,645 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:06:41,653 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:06:41,653 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:06:41,654 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:06:41,655 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:06:41,656 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:06:41,657 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:06:41,658 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:06:41,658 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:06:41,658 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:06:41,659 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:06:41,660 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:06:41,660 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:06:41,661 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:06:41,661 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:06:41,663 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:06:41,664 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:06:41,665 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:06:41,666 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:06:41,667 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:06:41,668 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:06:41,669 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:06:41,669 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:06:41,669 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:06:41,670 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:06:41,670 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:06:41,671 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:06:41,672 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:06:41,672 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:06:41,672 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:06:41,673 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:06:41,673 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:06:41,673 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:06:41,674 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:06:41,674 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 11:06:41,684 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:06:41,684 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:06:41,685 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:06:41,685 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:06:41,686 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:06:41,686 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:06:41,686 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:06:41,686 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:06:41,686 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:06:41,686 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:06:41,687 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:06:41,687 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:06:41,687 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:06:41,687 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:06:41,687 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:06:41,687 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:06:41,687 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:06:41,687 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:06:41,688 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:06:41,688 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:06:41,688 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:06:41,688 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:06:41,688 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:06:41,688 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:06:41,689 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:06:41,689 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:06:41,689 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:06:41,689 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:06:41,689 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:06:41,689 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:06:41,689 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_7dc91b81-be6c-4cc2-9b34-5253ad543969/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 -> d83baf1cdb4ca03660244dae388672dd75d02b3f [2018-11-28 11:06:41,714 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:06:41,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:06:41,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:06:41,727 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:06:41,727 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:06:41,728 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-28 11:06:41,763 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/data/b712e0193/207b1a8ae0354740b41dce25d9ccb3a6/FLAGdb7b1ed4a [2018-11-28 11:06:42,062 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:06:42,062 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-28 11:06:42,065 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/data/b712e0193/207b1a8ae0354740b41dce25d9ccb3a6/FLAGdb7b1ed4a [2018-11-28 11:06:42,073 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/data/b712e0193/207b1a8ae0354740b41dce25d9ccb3a6 [2018-11-28 11:06:42,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:06:42,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:06:42,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:06:42,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:06:42,080 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:06:42,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:42" (1/1) ... [2018-11-28 11:06:42,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b81155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42, skipping insertion in model container [2018-11-28 11:06:42,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:42" (1/1) ... [2018-11-28 11:06:42,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:06:42,101 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:06:42,211 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:06:42,214 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:06:42,222 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:06:42,230 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:06:42,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42 WrapperNode [2018-11-28 11:06:42,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:06:42,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:06:42,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:06:42,231 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:06:42,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42" (1/1) ... [2018-11-28 11:06:42,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42" (1/1) ... [2018-11-28 11:06:42,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:06:42,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:06:42,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:06:42,243 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:06:42,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42" (1/1) ... [2018-11-28 11:06:42,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42" (1/1) ... [2018-11-28 11:06:42,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42" (1/1) ... [2018-11-28 11:06:42,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42" (1/1) ... [2018-11-28 11:06:42,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42" (1/1) ... [2018-11-28 11:06:42,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42" (1/1) ... [2018-11-28 11:06:42,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42" (1/1) ... [2018-11-28 11:06:42,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:06:42,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:06:42,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:06:42,254 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:06:42,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/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 11:06:42,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:06:42,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:06:42,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:06:42,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:06:42,324 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:06:42,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:06:42,399 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:06:42,400 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 11:06:42,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:42 BoogieIcfgContainer [2018-11-28 11:06:42,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:06:42,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:06:42,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:06:42,402 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:06:42,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:06:42" (1/3) ... [2018-11-28 11:06:42,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ea71b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:42, skipping insertion in model container [2018-11-28 11:06:42,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:42" (2/3) ... [2018-11-28 11:06:42,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ea71b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:42, skipping insertion in model container [2018-11-28 11:06:42,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:42" (3/3) ... [2018-11-28 11:06:42,404 INFO L112 eAbstractionObserver]: Analyzing ICFG float1_true-unreach-call_true-termination.i [2018-11-28 11:06:42,410 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:06:42,414 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-28 11:06:42,422 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-28 11:06:42,441 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:06:42,441 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:06:42,441 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:06:42,441 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:06:42,441 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:06:42,442 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:06:42,442 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:06:42,442 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:06:42,442 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:06:42,452 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-11-28 11:06:42,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 11:06:42,456 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:06:42,457 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:06:42,458 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:06:42,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:06:42,462 INFO L82 PathProgramCache]: Analyzing trace with hash 703471866, now seen corresponding path program 1 times [2018-11-28 11:06:42,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:06:42,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:06:42,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:06:42,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:06:42,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:06:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:06:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:06:42,526 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 11:06:42,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:06:42 BoogieIcfgContainer [2018-11-28 11:06:42,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:06:42,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:06:42,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:06:42,539 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:06:42,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:42" (3/4) ... [2018-11-28 11:06:42,541 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:06:42,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:06:42,542 INFO L168 Benchmark]: Toolchain (without parser) took 466.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 962.0 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:06:42,543 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:06:42,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.57 ms. Allocated memory is still 1.0 GB. Free memory was 962.0 MB in the beginning and 951.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:06:42,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.16 ms. Allocated memory is still 1.0 GB. Free memory is still 951.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:06:42,544 INFO L168 Benchmark]: Boogie Preprocessor took 10.53 ms. Allocated memory is still 1.0 GB. Free memory is still 951.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:06:42,544 INFO L168 Benchmark]: RCFGBuilder took 146.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-28 11:06:42,545 INFO L168 Benchmark]: TraceAbstraction took 138.09 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:06:42,545 INFO L168 Benchmark]: Witness Printer took 2.63 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 11:06:42,547 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.57 ms. Allocated memory is still 1.0 GB. Free memory was 962.0 MB in the beginning and 951.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.16 ms. Allocated memory is still 1.0 GB. Free memory is still 951.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.53 ms. Allocated memory is still 1.0 GB. Free memory is still 951.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 146.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 138.09 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.63 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of to_real at line 6. Possible FailurePath: [L3] double x; [L4] int y; [L6] x=2 [L7] x-=0.6 [L8] y=x [L10] COND TRUE !(y==1) VAL [y=0] [L10] __VERIFIER_error() VAL [y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 2 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 11:06:43,995 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:06:43,996 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:06:44,004 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:06:44,004 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:06:44,005 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:06:44,006 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:06:44,007 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:06:44,008 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:06:44,009 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:06:44,010 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:06:44,010 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:06:44,011 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:06:44,012 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:06:44,012 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:06:44,013 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:06:44,014 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:06:44,015 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:06:44,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:06:44,018 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:06:44,019 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:06:44,020 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:06:44,021 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:06:44,022 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:06:44,022 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:06:44,022 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:06:44,023 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:06:44,024 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:06:44,024 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:06:44,025 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:06:44,025 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:06:44,026 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:06:44,026 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:06:44,026 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:06:44,027 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:06:44,028 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:06:44,028 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 11:06:44,039 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:06:44,039 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:06:44,040 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:06:44,040 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:06:44,041 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:06:44,041 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:06:44,041 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:06:44,041 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:06:44,041 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:06:44,041 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:06:44,042 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:06:44,042 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:06:44,042 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:06:44,042 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:06:44,042 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 11:06:44,042 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 11:06:44,042 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:06:44,043 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:06:44,043 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:06:44,043 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:06:44,043 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:06:44,043 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:06:44,043 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:06:44,044 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:06:44,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:06:44,044 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:06:44,044 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:06:44,044 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:06:44,044 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 11:06:44,045 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:06:44,045 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 11:06:44,045 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 11:06:44,045 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_7dc91b81-be6c-4cc2-9b34-5253ad543969/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 -> d83baf1cdb4ca03660244dae388672dd75d02b3f [2018-11-28 11:06:44,073 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:06:44,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:06:44,084 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:06:44,086 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:06:44,086 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:06:44,086 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-28 11:06:44,129 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/data/107ca169a/59fe9b81818f4bf2b24199640e5dd48a/FLAG55fcd596d [2018-11-28 11:06:44,450 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:06:44,450 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-28 11:06:44,453 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/data/107ca169a/59fe9b81818f4bf2b24199640e5dd48a/FLAG55fcd596d [2018-11-28 11:06:44,462 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/data/107ca169a/59fe9b81818f4bf2b24199640e5dd48a [2018-11-28 11:06:44,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:06:44,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:06:44,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:06:44,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:06:44,468 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:06:44,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:44" (1/1) ... [2018-11-28 11:06:44,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e33b2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44, skipping insertion in model container [2018-11-28 11:06:44,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:44" (1/1) ... [2018-11-28 11:06:44,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:06:44,484 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:06:44,579 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:06:44,584 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:06:44,593 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:06:44,602 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:06:44,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44 WrapperNode [2018-11-28 11:06:44,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:06:44,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:06:44,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:06:44,603 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:06:44,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44" (1/1) ... [2018-11-28 11:06:44,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44" (1/1) ... [2018-11-28 11:06:44,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:06:44,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:06:44,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:06:44,617 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:06:44,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44" (1/1) ... [2018-11-28 11:06:44,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44" (1/1) ... [2018-11-28 11:06:44,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44" (1/1) ... [2018-11-28 11:06:44,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44" (1/1) ... [2018-11-28 11:06:44,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44" (1/1) ... [2018-11-28 11:06:44,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44" (1/1) ... [2018-11-28 11:06:44,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44" (1/1) ... [2018-11-28 11:06:44,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:06:44,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:06:44,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:06:44,633 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:06:44,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/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 11:06:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:06:44,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:06:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:06:44,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:06:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:06:44,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:06:44,801 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:06:44,801 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 11:06:44,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:44 BoogieIcfgContainer [2018-11-28 11:06:44,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:06:44,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:06:44,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:06:44,804 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:06:44,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:06:44" (1/3) ... [2018-11-28 11:06:44,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58429c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:44, skipping insertion in model container [2018-11-28 11:06:44,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:44" (2/3) ... [2018-11-28 11:06:44,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58429c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:44, skipping insertion in model container [2018-11-28 11:06:44,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:44" (3/3) ... [2018-11-28 11:06:44,807 INFO L112 eAbstractionObserver]: Analyzing ICFG float1_true-unreach-call_true-termination.i [2018-11-28 11:06:44,813 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:06:44,817 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-28 11:06:44,826 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-28 11:06:44,846 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:06:44,847 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:06:44,847 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:06:44,847 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:06:44,847 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:06:44,847 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:06:44,847 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:06:44,847 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:06:44,848 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:06:44,861 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-11-28 11:06:44,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 11:06:44,865 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:06:44,866 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:06:44,868 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:06:44,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:06:44,871 INFO L82 PathProgramCache]: Analyzing trace with hash 703471866, now seen corresponding path program 1 times [2018-11-28 11:06:44,874 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:06:44,874 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/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 11:06:44,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:06:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:06:44,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:06:44,936 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 11:06:44,936 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:06:44,949 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:06:44,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:06:44,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:06:44,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:06:44,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:06:44,962 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2018-11-28 11:06:44,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:06:44,989 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-28 11:06:44,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:06:44,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 11:06:44,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:06:44,997 INFO L225 Difference]: With dead ends: 22 [2018-11-28 11:06:44,997 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 11:06:45,000 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:06:45,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 11:06:45,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 11:06:45,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 11:06:45,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 11:06:45,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-28 11:06:45,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:06:45,015 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:06:45,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:06:45,015 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:06:45,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 11:06:45,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 11:06:45,049 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 11:06:45,049 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:06:45,049 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:06:45,050 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 11:06:45,050 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:06:45,050 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:06:45,050 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 2 18) the Hoare annotation is: true [2018-11-28 11:06:45,050 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 2 18) no Hoare annotation was computed. [2018-11-28 11:06:45,050 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-28 11:06:45,051 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2018-11-28 11:06:45,051 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-28 11:06:45,051 INFO L448 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-28 11:06:45,051 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 2 18) no Hoare annotation was computed. [2018-11-28 11:06:45,051 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-28 11:06:45,051 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-28 11:06:45,051 INFO L448 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2018-11-28 11:06:45,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:06:45 BoogieIcfgContainer [2018-11-28 11:06:45,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:06:45,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:06:45,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:06:45,055 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:06:45,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:44" (3/4) ... [2018-11-28 11:06:45,058 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 11:06:45,064 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 11:06:45,065 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 11:06:45,067 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 11:06:45,067 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 11:06:45,067 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 11:06:45,091 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7dc91b81-be6c-4cc2-9b34-5253ad543969/bin-2019/uautomizer/witness.graphml [2018-11-28 11:06:45,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:06:45,091 INFO L168 Benchmark]: Toolchain (without parser) took 626.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:06:45,092 INFO L168 Benchmark]: CDTParser took 0.14 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 11:06:45,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.72 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:06:45,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.97 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:06:45,093 INFO L168 Benchmark]: Boogie Preprocessor took 15.75 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:06:45,093 INFO L168 Benchmark]: RCFGBuilder took 168.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -205.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-28 11:06:45,094 INFO L168 Benchmark]: TraceAbstraction took 252.37 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:06:45,094 INFO L168 Benchmark]: Witness Printer took 36.41 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 11:06:45,096 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 136.72 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.97 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.75 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 168.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -205.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 252.37 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * Witness Printer took 36.41 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: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 2 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 2 NumberOfNonLiveVariables, 14 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...