./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/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 64c6d061d6a52be18c2dbf1f223acaf24ab6149e ..................................................................................................................................................................................................................................... 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_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/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 64c6d061d6a52be18c2dbf1f223acaf24ab6149e .................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:32:10,855 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:32:10,856 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:32:10,866 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:32:10,867 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:32:10,868 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:32:10,869 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:32:10,870 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:32:10,872 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:32:10,872 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:32:10,873 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:32:10,873 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:32:10,874 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:32:10,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:32:10,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:32:10,877 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:32:10,877 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:32:10,879 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:32:10,880 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:32:10,882 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:32:10,883 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:32:10,884 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:32:10,886 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:32:10,886 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:32:10,886 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:32:10,887 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:32:10,888 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:32:10,888 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:32:10,889 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:32:10,890 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:32:10,890 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:32:10,891 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:32:10,891 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:32:10,891 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:32:10,892 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:32:10,892 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:32:10,893 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 07:32:10,904 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:32:10,904 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:32:10,905 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:32:10,905 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:32:10,906 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:32:10,906 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:32:10,906 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:32:10,906 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:32:10,906 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:32:10,907 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:32:10,907 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:32:10,907 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:32:10,907 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:32:10,907 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:32:10,907 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:32:10,908 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:32:10,908 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:32:10,908 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:32:10,908 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:32:10,908 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:32:10,908 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:32:10,909 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:32:10,909 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:32:10,909 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:32:10,909 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:32:10,909 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:32:10,909 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:32:10,910 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:32:10,910 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:32:10,910 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_791d281b-0dc5-4422-af15-4b33463159dc/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 -> 64c6d061d6a52be18c2dbf1f223acaf24ab6149e [2018-11-10 07:32:10,939 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:32:10,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:32:10,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:32:10,953 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:32:10,953 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:32:10,954 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-10 07:32:11,004 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/data/3f9a0609c/014d1d2173b94cd7a1ac27777c5f7119/FLAG65de6683d [2018-11-10 07:32:11,365 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:32:11,366 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-10 07:32:11,370 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/data/3f9a0609c/014d1d2173b94cd7a1ac27777c5f7119/FLAG65de6683d [2018-11-10 07:32:11,379 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/data/3f9a0609c/014d1d2173b94cd7a1ac27777c5f7119 [2018-11-10 07:32:11,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:32:11,383 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:32:11,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:32:11,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:32:11,387 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:32:11,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:32:11" (1/1) ... [2018-11-10 07:32:11,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18da3d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:11, skipping insertion in model container [2018-11-10 07:32:11,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:32:11" (1/1) ... [2018-11-10 07:32:11,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:32:11,414 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:32:11,532 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:32:11,536 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:32:11,548 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:32:11,559 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:32:11,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:11 WrapperNode [2018-11-10 07:32:11,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:32:11,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:32:11,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:32:11,560 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:32:11,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:11" (1/1) ... [2018-11-10 07:32:11,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:11" (1/1) ... [2018-11-10 07:32:11,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:11" (1/1) ... [2018-11-10 07:32:11,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:11" (1/1) ... [2018-11-10 07:32:11,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:11" (1/1) ... [2018-11-10 07:32:11,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:11" (1/1) ... [2018-11-10 07:32:11,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:11" (1/1) ... [2018-11-10 07:32:11,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:32:11,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:32:11,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:32:11,581 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:32:11,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/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 [2018-11-10 07:32:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:32:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:32:11,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:32:11,658 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:32:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:32:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 07:32:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:32:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:32:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:32:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:32:11,753 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:32:11,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:32:11 BoogieIcfgContainer [2018-11-10 07:32:11,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:32:11,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:32:11,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:32:11,757 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:32:11,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:32:11" (1/3) ... [2018-11-10 07:32:11,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b15d010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:32:11, skipping insertion in model container [2018-11-10 07:32:11,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:11" (2/3) ... [2018-11-10 07:32:11,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b15d010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:32:11, skipping insertion in model container [2018-11-10 07:32:11,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:32:11" (3/3) ... [2018-11-10 07:32:11,760 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_range_true-unreach-call_true-termination.c [2018-11-10 07:32:11,766 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:32:11,771 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:32:11,780 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:32:11,800 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:32:11,800 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:32:11,801 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:32:11,801 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:32:11,801 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:32:11,801 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:32:11,801 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:32:11,801 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:32:11,801 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:32:11,815 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-10 07:32:11,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 07:32:11,818 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:32:11,819 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:32:11,820 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:32:11,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:32:11,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-10 07:32:11,826 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:32:11,826 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:32:11,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:32:11,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:32:11,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:32:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:32:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:32:11,903 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:32:11,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:32:11 BoogieIcfgContainer [2018-11-10 07:32:11,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:32:11,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:32:11,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:32:11,917 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:32:11,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:32:11" (3/4) ... [2018-11-10 07:32:11,920 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 07:32:11,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:32:11,921 INFO L168 Benchmark]: Toolchain (without parser) took 538.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -113.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:32:11,922 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:32:11,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.50 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 947.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:32:11,923 INFO L168 Benchmark]: Boogie Preprocessor took 20.13 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:32:11,923 INFO L168 Benchmark]: RCFGBuilder took 172.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2018-11-10 07:32:11,924 INFO L168 Benchmark]: TraceAbstraction took 163.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-10 07:32:11,925 INFO L168 Benchmark]: Witness Printer took 3.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:32:11,927 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.50 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 947.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.13 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 172.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 163.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.28 ms. Allocated memory is still 1.1 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: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] float x; [L11] x = __VERIFIER_nondet_float() [L13] COND TRUE x >= -1e10 && x <= 1e10 VAL [x=2] [L14] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __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 0.1.23-1dbac8b [2018-11-10 07:32:13,522 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:32:13,523 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:32:13,533 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:32:13,533 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:32:13,534 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:32:13,535 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:32:13,537 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:32:13,538 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:32:13,538 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:32:13,539 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:32:13,539 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:32:13,540 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:32:13,541 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:32:13,542 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:32:13,543 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:32:13,543 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:32:13,545 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:32:13,546 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:32:13,548 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:32:13,548 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:32:13,549 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:32:13,551 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:32:13,552 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:32:13,552 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:32:13,552 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:32:13,553 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:32:13,554 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:32:13,554 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:32:13,555 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:32:13,556 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:32:13,556 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:32:13,556 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:32:13,556 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:32:13,557 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:32:13,558 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:32:13,558 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 07:32:13,570 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:32:13,571 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:32:13,571 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:32:13,572 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:32:13,572 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:32:13,572 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:32:13,573 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:32:13,573 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:32:13,573 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:32:13,573 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:32:13,573 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:32:13,573 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:32:13,574 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:32:13,574 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:32:13,574 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:32:13,574 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:32:13,574 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:32:13,575 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:32:13,575 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:32:13,575 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:32:13,575 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:32:13,575 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:32:13,575 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:32:13,576 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:32:13,576 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:32:13,576 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:32:13,576 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:32:13,576 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 07:32:13,577 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:32:13,577 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:32:13,577 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:32:13,577 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_791d281b-0dc5-4422-af15-4b33463159dc/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 -> 64c6d061d6a52be18c2dbf1f223acaf24ab6149e [2018-11-10 07:32:13,615 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:32:13,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:32:13,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:32:13,631 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:32:13,631 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:32:13,632 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-10 07:32:13,685 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/data/fc4838683/36498c2489bc4b9e9331dd344778a6df/FLAG9439bb012 [2018-11-10 07:32:14,024 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:32:14,024 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-10 07:32:14,029 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/data/fc4838683/36498c2489bc4b9e9331dd344778a6df/FLAG9439bb012 [2018-11-10 07:32:14,038 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/data/fc4838683/36498c2489bc4b9e9331dd344778a6df [2018-11-10 07:32:14,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:32:14,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:32:14,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:32:14,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:32:14,044 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:32:14,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:32:14" (1/1) ... [2018-11-10 07:32:14,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f073077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:14, skipping insertion in model container [2018-11-10 07:32:14,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:32:14" (1/1) ... [2018-11-10 07:32:14,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:32:14,072 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:32:14,192 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:32:14,196 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:32:14,207 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:32:14,220 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:32:14,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:14 WrapperNode [2018-11-10 07:32:14,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:32:14,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:32:14,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:32:14,222 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:32:14,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:14" (1/1) ... [2018-11-10 07:32:14,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:14" (1/1) ... [2018-11-10 07:32:14,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:14" (1/1) ... [2018-11-10 07:32:14,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:14" (1/1) ... [2018-11-10 07:32:14,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:14" (1/1) ... [2018-11-10 07:32:14,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:14" (1/1) ... [2018-11-10 07:32:14,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:14" (1/1) ... [2018-11-10 07:32:14,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:32:14,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:32:14,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:32:14,244 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:32:14,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/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 [2018-11-10 07:32:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:32:14,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:32:14,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:32:14,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:32:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:32:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 07:32:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:32:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:32:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:32:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:32:14,569 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:32:14,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:32:14 BoogieIcfgContainer [2018-11-10 07:32:14,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:32:14,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:32:14,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:32:14,572 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:32:14,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:32:14" (1/3) ... [2018-11-10 07:32:14,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5d9ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:32:14, skipping insertion in model container [2018-11-10 07:32:14,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:32:14" (2/3) ... [2018-11-10 07:32:14,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5d9ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:32:14, skipping insertion in model container [2018-11-10 07:32:14,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:32:14" (3/3) ... [2018-11-10 07:32:14,574 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_range_true-unreach-call_true-termination.c [2018-11-10 07:32:14,583 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:32:14,590 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:32:14,600 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:32:14,620 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:32:14,621 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:32:14,621 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:32:14,621 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:32:14,621 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:32:14,621 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:32:14,621 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:32:14,621 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:32:14,622 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:32:14,633 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-10 07:32:14,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 07:32:14,639 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:32:14,640 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:32:14,642 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:32:14,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:32:14,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-10 07:32:14,651 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:32:14,651 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/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 [2018-11-10 07:32:14,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:32:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:32:14,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:32:14,910 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-10 07:32:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:32:15,346 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:32:15,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:32:15,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 07:32:15,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 07:32:15,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 07:32:15,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 07:32:15,370 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2018-11-10 07:32:15,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:32:15,823 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-11-10 07:32:15,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 07:32:15,828 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-10 07:32:15,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:32:15,834 INFO L225 Difference]: With dead ends: 28 [2018-11-10 07:32:15,834 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 07:32:15,837 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 07:32:15,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 07:32:15,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 07:32:15,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 07:32:15,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 07:32:15,856 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-10 07:32:15,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:32:15,857 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:32:15,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 07:32:15,857 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 07:32:15,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:32:15,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 07:32:16,001 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-10 07:32:16,003 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 07:32:16,003 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:32:16,003 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:32:16,003 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 07:32:16,004 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:32:16,004 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:32:16,004 INFO L421 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (fp.geq ((_ to_fp 11 53) RNE main_~x~0) (fp.neg ((_ to_fp 11 53) RNE 10000000000.0))) [2018-11-10 07:32:16,004 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 8 17) the Hoare annotation is: true [2018-11-10 07:32:16,004 INFO L425 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2018-11-10 07:32:16,004 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 17) no Hoare annotation was computed. [2018-11-10 07:32:16,004 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 15) no Hoare annotation was computed. [2018-11-10 07:32:16,005 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 17) no Hoare annotation was computed. [2018-11-10 07:32:16,005 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 6) the Hoare annotation is: true [2018-11-10 07:32:16,005 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 6) no Hoare annotation was computed. [2018-11-10 07:32:16,005 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-11-10 07:32:16,006 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-11-10 07:32:16,006 INFO L425 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2018-11-10 07:32:16,006 INFO L425 ceAbstractionStarter]: For program point L6-3(line 6) no Hoare annotation was computed. [2018-11-10 07:32:16,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:32:16 BoogieIcfgContainer [2018-11-10 07:32:16,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:32:16,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:32:16,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:32:16,009 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:32:16,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:32:14" (3/4) ... [2018-11-10 07:32:16,012 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:32:16,016 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 07:32:16,017 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 07:32:16,017 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 07:32:16,020 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 07:32:16,020 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 07:32:16,021 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 07:32:16,047 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_791d281b-0dc5-4422-af15-4b33463159dc/bin-2019/uautomizer/witness.graphml [2018-11-10 07:32:16,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:32:16,047 INFO L168 Benchmark]: Toolchain (without parser) took 2007.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -112.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:32:16,048 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:32:16,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.51 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:32:16,049 INFO L168 Benchmark]: Boogie Preprocessor took 21.78 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:32:16,049 INFO L168 Benchmark]: RCFGBuilder took 325.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:32:16,050 INFO L168 Benchmark]: TraceAbstraction took 1438.23 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:32:16,050 INFO L168 Benchmark]: Witness Printer took 38.58 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. [2018-11-10 07:32:16,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.51 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.78 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 325.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1438.23 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. * Witness Printer took 38.58 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: 6]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 7 SDslu, 40 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 13 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 2 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 4 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...