./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/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 5d57b69a18e01217b153b00cc1c03d5a7a42828b ............................................................................................................................................................................................................................................... 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_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/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 5d57b69a18e01217b153b00cc1c03d5a7a42828b ........................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 21:34:30,605 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 21:34:30,606 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 21:34:30,613 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 21:34:30,613 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 21:34:30,614 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 21:34:30,615 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 21:34:30,616 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 21:34:30,617 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 21:34:30,618 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 21:34:30,618 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 21:34:30,618 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 21:34:30,619 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 21:34:30,620 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 21:34:30,620 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 21:34:30,621 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 21:34:30,622 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 21:34:30,623 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 21:34:30,624 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 21:34:30,625 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 21:34:30,626 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 21:34:30,626 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 21:34:30,628 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 21:34:30,628 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 21:34:30,628 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 21:34:30,629 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 21:34:30,629 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 21:34:30,630 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 21:34:30,630 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 21:34:30,631 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 21:34:30,631 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 21:34:30,632 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 21:34:30,632 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 21:34:30,632 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 21:34:30,633 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 21:34:30,633 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 21:34:30,633 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 21:34:30,642 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 21:34:30,643 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 21:34:30,643 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 21:34:30,643 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 21:34:30,644 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 21:34:30,644 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 21:34:30,644 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 21:34:30,644 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 21:34:30,644 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 21:34:30,645 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 21:34:30,645 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 21:34:30,645 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 21:34:30,645 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 21:34:30,645 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 21:34:30,645 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 21:34:30,645 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 21:34:30,645 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 21:34:30,645 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 21:34:30,645 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 21:34:30,646 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 21:34:30,646 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 21:34:30,646 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 21:34:30,646 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 21:34:30,646 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 21:34:30,646 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 21:34:30,646 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 21:34:30,646 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 21:34:30,646 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 21:34:30,646 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 21:34:30,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 21:34:30,647 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_34e81a19-4afe-490c-8417-2599c4e0b3f6/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 -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-12-02 21:34:30,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 21:34:30,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 21:34:30,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 21:34:30,683 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 21:34:30,683 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 21:34:30,683 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-12-02 21:34:30,723 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/data/91955446f/1cd5244f997942109e10dda1f66eafe2/FLAG60a8fa273 [2018-12-02 21:34:31,144 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 21:34:31,144 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-12-02 21:34:31,148 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/data/91955446f/1cd5244f997942109e10dda1f66eafe2/FLAG60a8fa273 [2018-12-02 21:34:31,156 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/data/91955446f/1cd5244f997942109e10dda1f66eafe2 [2018-12-02 21:34:31,157 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 21:34:31,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 21:34:31,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 21:34:31,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 21:34:31,160 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 21:34:31,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:34:31" (1/1) ... [2018-12-02 21:34:31,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aa496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31, skipping insertion in model container [2018-12-02 21:34:31,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:34:31" (1/1) ... [2018-12-02 21:34:31,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 21:34:31,175 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 21:34:31,255 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:34:31,258 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 21:34:31,266 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:34:31,274 INFO L195 MainTranslator]: Completed translation [2018-12-02 21:34:31,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31 WrapperNode [2018-12-02 21:34:31,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 21:34:31,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 21:34:31,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 21:34:31,275 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 21:34:31,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31" (1/1) ... [2018-12-02 21:34:31,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31" (1/1) ... [2018-12-02 21:34:31,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 21:34:31,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 21:34:31,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 21:34:31,287 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 21:34:31,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31" (1/1) ... [2018-12-02 21:34:31,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31" (1/1) ... [2018-12-02 21:34:31,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31" (1/1) ... [2018-12-02 21:34:31,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31" (1/1) ... [2018-12-02 21:34:31,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31" (1/1) ... [2018-12-02 21:34:31,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31" (1/1) ... [2018-12-02 21:34:31,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31" (1/1) ... [2018-12-02 21:34:31,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 21:34:31,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 21:34:31,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 21:34:31,329 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 21:34:31,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 21:34:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 21:34:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 21:34:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 21:34:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 21:34:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 21:34:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 21:34:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 21:34:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 21:34:31,442 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 21:34:31,442 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 21:34:31,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:34:31 BoogieIcfgContainer [2018-12-02 21:34:31,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 21:34:31,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 21:34:31,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 21:34:31,446 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 21:34:31,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:34:31" (1/3) ... [2018-12-02 21:34:31,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26be0a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:34:31, skipping insertion in model container [2018-12-02 21:34:31,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:31" (2/3) ... [2018-12-02 21:34:31,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26be0a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:34:31, skipping insertion in model container [2018-12-02 21:34:31,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:34:31" (3/3) ... [2018-12-02 21:34:31,449 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-12-02 21:34:31,455 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 21:34:31,460 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 21:34:31,474 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 21:34:31,495 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 21:34:31,495 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 21:34:31,496 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 21:34:31,496 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 21:34:31,496 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 21:34:31,496 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 21:34:31,496 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 21:34:31,496 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 21:34:31,496 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 21:34:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-02 21:34:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 21:34:31,510 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:34:31,510 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:34:31,511 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:34:31,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:34:31,515 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-12-02 21:34:31,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 21:34:31,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 21:34:31,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:34:31,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:34:31,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:34:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 21:34:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 21:34:31,580 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 21:34:31,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:34:31 BoogieIcfgContainer [2018-12-02 21:34:31,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 21:34:31,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 21:34:31,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 21:34:31,594 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 21:34:31,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:34:31" (3/4) ... [2018-12-02 21:34:31,597 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 21:34:31,597 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 21:34:31,598 INFO L168 Benchmark]: Toolchain (without parser) took 440.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 958.7 MB in the beginning and 1.1 GB in the end (delta: -135.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:34:31,599 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-12-02 21:34:31,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.12 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 21:34:31,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.87 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:34:31,600 INFO L168 Benchmark]: Boogie Preprocessor took 42.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-02 21:34:31,601 INFO L168 Benchmark]: RCFGBuilder took 113.71 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-12-02 21:34:31,601 INFO L168 Benchmark]: TraceAbstraction took 150.67 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-02 21:34:31,601 INFO L168 Benchmark]: Witness Printer took 2.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:34:31,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 116.12 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 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 11.87 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 113.71 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 150.67 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.94 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: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 18, overapproximation of someBinaryDOUBLEComparisonOperation at line 18. Possible FailurePath: [L6] float x, y, z; [L8] x = 1.f [L9] y = 1e7 [L10] z = 42.f VAL [x=1, y=10000000, z=42] [L12] COND FALSE !(x < y) VAL [x=1, y=10000000, z=42] [L18] CALL __VERIFIER_assert(z >= 0.f && z <= 1e8) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 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=18occurred 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, 10 NumberOfCodeBlocks, 10 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 0.1.23-635dfa2 [2018-12-02 21:34:32,956 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 21:34:32,956 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 21:34:32,964 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 21:34:32,964 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 21:34:32,965 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 21:34:32,965 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 21:34:32,966 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 21:34:32,967 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 21:34:32,968 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 21:34:32,968 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 21:34:32,969 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 21:34:32,969 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 21:34:32,970 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 21:34:32,971 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 21:34:32,971 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 21:34:32,972 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 21:34:32,973 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 21:34:32,974 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 21:34:32,975 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 21:34:32,976 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 21:34:32,977 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 21:34:32,978 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 21:34:32,979 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 21:34:32,979 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 21:34:32,979 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 21:34:32,980 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 21:34:32,981 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 21:34:32,981 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 21:34:32,982 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 21:34:32,982 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 21:34:32,982 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 21:34:32,983 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 21:34:32,983 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 21:34:32,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 21:34:32,984 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 21:34:32,984 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 21:34:32,994 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 21:34:32,994 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 21:34:32,995 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 21:34:32,995 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 21:34:32,995 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 21:34:32,995 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 21:34:32,995 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 21:34:32,996 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 21:34:32,996 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 21:34:32,996 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 21:34:32,996 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 21:34:32,996 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 21:34:32,996 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 21:34:32,996 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 21:34:32,996 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 21:34:32,996 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 21:34:32,996 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 21:34:32,997 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 21:34:32,997 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 21:34:32,997 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 21:34:32,997 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 21:34:32,997 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 21:34:32,997 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 21:34:32,997 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 21:34:32,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 21:34:32,998 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 21:34:32,998 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 21:34:32,998 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 21:34:32,998 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 21:34:32,998 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 21:34:32,998 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 21:34:32,998 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 21:34:32,998 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_34e81a19-4afe-490c-8417-2599c4e0b3f6/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 -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-12-02 21:34:33,021 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 21:34:33,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 21:34:33,029 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 21:34:33,030 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 21:34:33,031 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 21:34:33,031 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-12-02 21:34:33,065 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/data/258aedc06/dda5660b20b2460ba6ab857bdb1efff7/FLAG085d94049 [2018-12-02 21:34:33,375 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 21:34:33,375 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-12-02 21:34:33,378 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/data/258aedc06/dda5660b20b2460ba6ab857bdb1efff7/FLAG085d94049 [2018-12-02 21:34:33,798 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/data/258aedc06/dda5660b20b2460ba6ab857bdb1efff7 [2018-12-02 21:34:33,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 21:34:33,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 21:34:33,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 21:34:33,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 21:34:33,805 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 21:34:33,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:34:33" (1/1) ... [2018-12-02 21:34:33,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63407dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33, skipping insertion in model container [2018-12-02 21:34:33,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:34:33" (1/1) ... [2018-12-02 21:34:33,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 21:34:33,824 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 21:34:33,909 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:34:33,913 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 21:34:33,922 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:34:33,930 INFO L195 MainTranslator]: Completed translation [2018-12-02 21:34:33,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33 WrapperNode [2018-12-02 21:34:33,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 21:34:33,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 21:34:33,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 21:34:33,931 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 21:34:33,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33" (1/1) ... [2018-12-02 21:34:33,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33" (1/1) ... [2018-12-02 21:34:33,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 21:34:33,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 21:34:33,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 21:34:33,945 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 21:34:33,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33" (1/1) ... [2018-12-02 21:34:33,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33" (1/1) ... [2018-12-02 21:34:33,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33" (1/1) ... [2018-12-02 21:34:33,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33" (1/1) ... [2018-12-02 21:34:33,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33" (1/1) ... [2018-12-02 21:34:33,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33" (1/1) ... [2018-12-02 21:34:33,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33" (1/1) ... [2018-12-02 21:34:33,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 21:34:33,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 21:34:33,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 21:34:33,961 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 21:34:33,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 21:34:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 21:34:34,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 21:34:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 21:34:34,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 21:34:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 21:34:34,031 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 21:34:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 21:34:34,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 21:34:34,552 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 21:34:34,553 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 21:34:34,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:34:34 BoogieIcfgContainer [2018-12-02 21:34:34,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 21:34:34,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 21:34:34,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 21:34:34,555 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 21:34:34,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:34:33" (1/3) ... [2018-12-02 21:34:34,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f098cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:34:34, skipping insertion in model container [2018-12-02 21:34:34,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:34:33" (2/3) ... [2018-12-02 21:34:34,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f098cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:34:34, skipping insertion in model container [2018-12-02 21:34:34,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:34:34" (3/3) ... [2018-12-02 21:34:34,557 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-12-02 21:34:34,562 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 21:34:34,567 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 21:34:34,580 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 21:34:34,599 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 21:34:34,600 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 21:34:34,600 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 21:34:34,600 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 21:34:34,600 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 21:34:34,600 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 21:34:34,600 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 21:34:34,600 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 21:34:34,600 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 21:34:34,610 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-02 21:34:34,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 21:34:34,613 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:34:34,613 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:34:34,614 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:34:34,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:34:34,618 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-12-02 21:34:34,620 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 21:34:34,620 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-02 21:34:34,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:34:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:34:34,651 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 21:34:34,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:34:34,683 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 21:34:34,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:34:34,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 21:34:34,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 21:34:34,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 21:34:34,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 21:34:34,703 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-12-02 21:34:34,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:34:34,950 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-12-02 21:34:34,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 21:34:34,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-02 21:34:34,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:34:34,956 INFO L225 Difference]: With dead ends: 31 [2018-12-02 21:34:34,956 INFO L226 Difference]: Without dead ends: 12 [2018-12-02 21:34:34,958 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 21:34:34,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-02 21:34:34,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-02 21:34:34,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-02 21:34:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-12-02 21:34:34,979 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-12-02 21:34:34,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:34:34,980 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-12-02 21:34:34,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 21:34:34,980 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-12-02 21:34:34,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 21:34:34,980 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:34:34,980 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:34:34,981 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:34:34,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:34:34,981 INFO L82 PathProgramCache]: Analyzing trace with hash -429188558, now seen corresponding path program 1 times [2018-12-02 21:34:34,981 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 21:34:34,981 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-02 21:34:34,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:34:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:34:35,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 21:34:35,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:34:35,080 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 21:34:38,331 WARN L180 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-02 21:34:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:34:38,346 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 21:34:38,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-12-02 21:34:38,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 21:34:38,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 21:34:38,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2018-12-02 21:34:38,347 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2018-12-02 21:34:45,198 WARN L180 SmtUtils]: Spent 2.94 s on a formula simplification that was a NOOP. DAG size: 10 [2018-12-02 21:34:47,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:34:47,601 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-12-02 21:34:47,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 21:34:47,606 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-12-02 21:34:47,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:34:47,607 INFO L225 Difference]: With dead ends: 20 [2018-12-02 21:34:47,607 INFO L226 Difference]: Without dead ends: 15 [2018-12-02 21:34:47,607 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=19, Invalid=21, Unknown=2, NotChecked=0, Total=42 [2018-12-02 21:34:47,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-02 21:34:47,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-02 21:34:47,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-02 21:34:47,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-12-02 21:34:47,610 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2018-12-02 21:34:47,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:34:47,610 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-12-02 21:34:47,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 21:34:47,611 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-12-02 21:34:47,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 21:34:47,611 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:34:47,611 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:34:47,611 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:34:47,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:34:47,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1090549245, now seen corresponding path program 2 times [2018-12-02 21:34:47,612 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 21:34:47,612 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-02 21:34:47,615 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-02 21:34:47,836 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-02 21:34:47,836 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 21:34:47,857 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 21:34:47,943 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:34:47,943 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 21:34:48,909 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-12-02 21:34:55,730 WARN L180 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-02 21:35:10,737 WARN L180 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-02 21:35:41,725 WARN L180 SmtUtils]: Spent 5.62 s on a formula simplification that was a NOOP. DAG size: 14 [2018-12-02 21:35:43,747 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven c_main_~z~0 .cse1) .cse1) .cse1) .cse1)))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)))) is different from false [2018-12-02 21:35:45,767 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven c_main_~z~0 .cse1) .cse1) .cse1) .cse1)))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)))) is different from true [2018-12-02 21:35:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 5 times theorem prover too weak. 0 trivial. 4 not checked. [2018-12-02 21:35:45,785 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 21:35:45,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-12-02 21:35:45,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-02 21:35:45,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-02 21:35:45,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=153, Unknown=9, NotChecked=26, Total=240 [2018-12-02 21:35:45,787 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 16 states. [2018-12-02 21:36:11,962 WARN L180 SmtUtils]: Spent 7.35 s on a formula simplification. DAG size of input: 19 DAG size of output: 12 [2018-12-02 21:36:16,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:36:16,620 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-12-02 21:36:16,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 21:36:16,632 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 14 [2018-12-02 21:36:16,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:36:16,633 INFO L225 Difference]: With dead ends: 17 [2018-12-02 21:36:16,633 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 21:36:16,634 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 80.0s TimeCoverageRelationStatistics Valid=69, Invalid=198, Unknown=9, NotChecked=30, Total=306 [2018-12-02 21:36:16,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 21:36:16,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 21:36:16,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 21:36:16,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 21:36:16,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-12-02 21:36:16,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:36:16,635 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 21:36:16,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-02 21:36:16,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 21:36:16,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 21:36:16,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 21:36:19,744 WARN L180 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 20 DAG size of output: 12 [2018-12-02 21:36:28,110 WARN L180 SmtUtils]: Spent 8.36 s on a formula simplification. DAG size of input: 43 DAG size of output: 12 [2018-12-02 21:36:28,111 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-02 21:36:28,111 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 21:36:28,112 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 21:36:28,112 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 21:36:28,112 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 21:36:28,112 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 21:36:28,112 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 4 20) the Hoare annotation is: true [2018-12-02 21:36:28,112 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 4 20) no Hoare annotation was computed. [2018-12-02 21:36:28,112 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-12-02 21:36:28,112 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 4 20) no Hoare annotation was computed. [2018-12-02 21:36:28,112 INFO L444 ceAbstractionStarter]: At program point L12-2(lines 12 16) the Hoare annotation is: (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (fp.add roundNearestTiesToEven main_~z~0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (fp.geq main_~z~0 (_ +zero 8 24))) [2018-12-02 21:36:28,112 INFO L444 ceAbstractionStarter]: At program point L12-3(lines 12 16) the Hoare annotation is: (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (fp.add roundNearestTiesToEven main_~z~0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (fp.geq main_~z~0 (_ +zero 8 24))) [2018-12-02 21:36:28,112 INFO L448 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-12-02 21:36:28,113 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-12-02 21:36:28,113 INFO L448 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2018-12-02 21:36:28,113 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2018-12-02 21:36:28,113 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2018-12-02 21:36:28,113 INFO L448 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-12-02 21:36:28,117 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,118 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,118 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,118 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,121 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,121 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,121 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,121 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:36:28 BoogieIcfgContainer [2018-12-02 21:36:28,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 21:36:28,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 21:36:28,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 21:36:28,123 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 21:36:28,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:34:34" (3/4) ... [2018-12-02 21:36:28,126 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 21:36:28,130 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 21:36:28,130 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 21:36:28,130 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-02 21:36:28,132 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-02 21:36:28,133 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 21:36:28,133 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 21:36:28,155 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_34e81a19-4afe-490c-8417-2599c4e0b3f6/bin-2019/uautomizer/witness.graphml [2018-12-02 21:36:28,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 21:36:28,155 INFO L168 Benchmark]: Toolchain (without parser) took 114354.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 943.4 MB in the beginning and 993.2 MB in the end (delta: -49.8 MB). Peak memory consumption was 89.1 MB. Max. memory is 11.5 GB. [2018-12-02 21:36:28,156 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:36:28,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 128.45 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. [2018-12-02 21:36:28,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.43 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. [2018-12-02 21:36:28,157 INFO L168 Benchmark]: Boogie Preprocessor took 15.74 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 21:36:28,157 INFO L168 Benchmark]: RCFGBuilder took 592.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-02 21:36:28,157 INFO L168 Benchmark]: TraceAbstraction took 113569.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.8 MB in the end (delta: 115.3 MB). Peak memory consumption was 115.3 MB. Max. memory is 11.5 GB. [2018-12-02 21:36:28,158 INFO L168 Benchmark]: Witness Printer took 32.04 ms. Allocated memory is still 1.2 GB. Free memory was 999.8 MB in the beginning and 993.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-02 21:36:28,159 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 128.45 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 13.43 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 15.74 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 592.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 113569.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.8 MB in the end (delta: 115.3 MB). Peak memory consumption was 115.3 MB. Max. memory is 11.5 GB. * Witness Printer took 32.04 ms. Allocated memory is still 1.2 GB. Free memory was 999.8 MB in the beginning and 993.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 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 - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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: 2]: 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: 12]: Loop Invariant [2018-12-02 21:36:28,162 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,162 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,162 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,163 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,163 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,163 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,163 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 21:36:28,163 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.leq~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.add~FLOAT(~roundNearestTiesToEven, z, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E8)) && ~fp.geq~FLOAT(z, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 113.5s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 40.3s AutomataDifference, 0.0s DeadEndRemovalTime, 11.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 6 SDslu, 97 SDs, 0 SdLazy, 62 SolverSat, 10 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 11.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 35 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 89.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 17 NumberOfFragments, 37 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 159 FormulaSimplificationTreeSizeReductionInter, 11.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 61.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 4691 SizeOfPredicates, 6 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/22 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...