./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/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 a9ad6ad46925d70ccfe8113c6806757723d44310 ......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/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 a9ad6ad46925d70ccfe8113c6806757723d44310 .................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:35:43,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:35:43,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:35:43,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:35:43,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:35:43,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:35:43,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:35:43,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:35:43,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:35:43,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:35:43,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:35:43,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:35:43,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:35:43,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:35:43,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:35:43,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:35:43,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:35:43,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:35:43,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:35:43,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:35:43,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:35:43,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:35:43,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:35:43,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:35:43,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:35:43,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:35:43,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:35:43,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:35:43,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:35:43,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:35:43,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:35:43,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:35:43,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:35:43,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:35:43,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:35:43,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:35:43,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:35:43,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:35:43,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:35:43,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:35:43,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:35:43,892 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 22:35:43,922 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:35:43,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:35:43,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:35:43,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:35:43,924 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:35:43,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:35:43,924 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:35:43,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:35:43,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:35:43,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:35:43,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:35:43,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:35:43,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:35:43,926 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:35:43,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:35:43,926 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:35:43,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:35:43,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:35:43,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:35:43,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:35:43,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:35:43,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:35:43,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:35:43,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:35:43,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:35:43,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:35:43,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:35:43,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:35:43,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/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 -> a9ad6ad46925d70ccfe8113c6806757723d44310 [2019-11-19 22:35:44,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:35:44,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:35:44,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:35:44,108 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:35:44,108 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:35:44,110 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-11-19 22:35:44,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/data/da6c2e2d1/1745a213df14498ab5d1597e7012297d/FLAG20f8244fa [2019-11-19 22:35:44,566 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:35:44,567 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-11-19 22:35:44,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/data/da6c2e2d1/1745a213df14498ab5d1597e7012297d/FLAG20f8244fa [2019-11-19 22:35:44,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/data/da6c2e2d1/1745a213df14498ab5d1597e7012297d [2019-11-19 22:35:44,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:35:44,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:35:44,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:35:44,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:35:44,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:35:44,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:35:44" (1/1) ... [2019-11-19 22:35:44,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73b304a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44, skipping insertion in model container [2019-11-19 22:35:44,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:35:44" (1/1) ... [2019-11-19 22:35:44,601 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:35:44,615 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:35:44,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:35:44,781 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:35:44,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:35:44,908 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:35:44,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44 WrapperNode [2019-11-19 22:35:44,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:35:44,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:35:44,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:35:44,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:35:44,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44" (1/1) ... [2019-11-19 22:35:44,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44" (1/1) ... [2019-11-19 22:35:44,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:35:44,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:35:44,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:35:44,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:35:44,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44" (1/1) ... [2019-11-19 22:35:44,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44" (1/1) ... [2019-11-19 22:35:44,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44" (1/1) ... [2019-11-19 22:35:44,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44" (1/1) ... [2019-11-19 22:35:44,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44" (1/1) ... [2019-11-19 22:35:44,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44" (1/1) ... [2019-11-19 22:35:44,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44" (1/1) ... [2019-11-19 22:35:44,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:35:44,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:35:44,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:35:44,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:35:44,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/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 [2019-11-19 22:35:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:35:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:35:45,128 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:35:45,129 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 22:35:45,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:35:45 BoogieIcfgContainer [2019-11-19 22:35:45,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:35:45,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:35:45,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:35:45,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:35:45,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:35:44" (1/3) ... [2019-11-19 22:35:45,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16fc8e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:35:45, skipping insertion in model container [2019-11-19 22:35:45,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:44" (2/3) ... [2019-11-19 22:35:45,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16fc8e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:35:45, skipping insertion in model container [2019-11-19 22:35:45,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:35:45" (3/3) ... [2019-11-19 22:35:45,136 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2019-11-19 22:35:45,144 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:35:45,149 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:35:45,156 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:35:45,174 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:35:45,174 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:35:45,174 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:35:45,174 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:35:45,174 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:35:45,175 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:35:45,175 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:35:45,175 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:35:45,187 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-19 22:35:45,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-19 22:35:45,192 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:35:45,192 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-19 22:35:45,192 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:35:45,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:35:45,198 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-19 22:35:45,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:35:45,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529992742] [2019-11-19 22:35:45,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:35:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:35:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:35:45,298 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:35:45,299 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 22:35:45,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:35:45 BoogieIcfgContainer [2019-11-19 22:35:45,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:35:45,312 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:35:45,312 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:35:45,313 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:35:45,313 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:35:45" (3/4) ... [2019-11-19 22:35:45,316 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:35:45,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:35:45,318 INFO L168 Benchmark]: Toolchain (without parser) took 730.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:35:45,319 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:35:45,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -210.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:35:45,320 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:35:45,321 INFO L168 Benchmark]: Boogie Preprocessor took 14.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:35:45,321 INFO L168 Benchmark]: RCFGBuilder took 174.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:35:45,322 INFO L168 Benchmark]: TraceAbstraction took 181.50 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:35:45,322 INFO L168 Benchmark]: Witness Printer took 3.54 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. [2019-11-19 22:35:45,325 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 321.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -210.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 174.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 181.50 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.54 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: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 11. Possible FailurePath: [L8] float x, y, z, r; [L10] x = 1e8f [L11] y = x + 1.f [L12] z = x - 1.f [L13] r = y - z [L4] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-678e011 [2019-11-19 22:35:47,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:35:47,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:35:47,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:35:47,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:35:47,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:35:47,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:35:47,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:35:47,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:35:47,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:35:47,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:35:47,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:35:47,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:35:47,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:35:47,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:35:47,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:35:47,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:35:47,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:35:47,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:35:47,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:35:47,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:35:47,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:35:47,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:35:47,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:35:47,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:35:47,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:35:47,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:35:47,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:35:47,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:35:47,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:35:47,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:35:47,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:35:47,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:35:47,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:35:47,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:35:47,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:35:47,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:35:47,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:35:47,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:35:47,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:35:47,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:35:47,099 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 22:35:47,118 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:35:47,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:35:47,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:35:47,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:35:47,121 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:35:47,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:35:47,121 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:35:47,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:35:47,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:35:47,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:35:47,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:35:47,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:35:47,123 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 22:35:47,124 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 22:35:47,124 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:35:47,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:35:47,125 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:35:47,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:35:47,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:35:47,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:35:47,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:35:47,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:35:47,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:35:47,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:35:47,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:35:47,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:35:47,127 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 22:35:47,127 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 22:35:47,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:35:47,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 22:35:47,128 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/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 -> a9ad6ad46925d70ccfe8113c6806757723d44310 [2019-11-19 22:35:47,487 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:35:47,497 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:35:47,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:35:47,504 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:35:47,504 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:35:47,505 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-11-19 22:35:47,565 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/data/31cc9b82f/d05f9b25986f4104b55a1ac467e35578/FLAG57bba0eae [2019-11-19 22:35:47,943 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:35:47,944 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-11-19 22:35:47,949 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/data/31cc9b82f/d05f9b25986f4104b55a1ac467e35578/FLAG57bba0eae [2019-11-19 22:35:48,398 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/data/31cc9b82f/d05f9b25986f4104b55a1ac467e35578 [2019-11-19 22:35:48,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:35:48,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:35:48,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:35:48,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:35:48,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:35:48,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:35:48" (1/1) ... [2019-11-19 22:35:48,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@145fee00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48, skipping insertion in model container [2019-11-19 22:35:48,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:35:48" (1/1) ... [2019-11-19 22:35:48,424 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:35:48,439 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:35:48,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:35:48,572 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:35:48,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:35:48,598 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:35:48,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48 WrapperNode [2019-11-19 22:35:48,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:35:48,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:35:48,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:35:48,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:35:48,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48" (1/1) ... [2019-11-19 22:35:48,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48" (1/1) ... [2019-11-19 22:35:48,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:35:48,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:35:48,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:35:48,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:35:48,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48" (1/1) ... [2019-11-19 22:35:48,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48" (1/1) ... [2019-11-19 22:35:48,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48" (1/1) ... [2019-11-19 22:35:48,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48" (1/1) ... [2019-11-19 22:35:48,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48" (1/1) ... [2019-11-19 22:35:48,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48" (1/1) ... [2019-11-19 22:35:48,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48" (1/1) ... [2019-11-19 22:35:48,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:35:48,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:35:48,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:35:48,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:35:48,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/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 [2019-11-19 22:35:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:35:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:35:48,870 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:35:48,870 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 22:35:48,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:35:48 BoogieIcfgContainer [2019-11-19 22:35:48,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:35:48,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:35:48,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:35:48,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:35:48,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:35:48" (1/3) ... [2019-11-19 22:35:48,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4078b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:35:48, skipping insertion in model container [2019-11-19 22:35:48,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:35:48" (2/3) ... [2019-11-19 22:35:48,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4078b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:35:48, skipping insertion in model container [2019-11-19 22:35:48,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:35:48" (3/3) ... [2019-11-19 22:35:48,879 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2019-11-19 22:35:48,887 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:35:48,893 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:35:48,902 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:35:48,924 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:35:48,924 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:35:48,924 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:35:48,924 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:35:48,925 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:35:48,925 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:35:48,925 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:35:48,925 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:35:48,938 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-19 22:35:48,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-19 22:35:48,943 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:35:48,943 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-19 22:35:48,944 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:35:48,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:35:48,949 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-19 22:35:48,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:35:48,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714807508] [2019-11-19 22:35:48,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/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 [2019-11-19 22:35:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:35:49,055 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 22:35:49,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:35:49,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:35:49,142 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:35:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:35:49,163 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714807508] [2019-11-19 22:35:49,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:35:49,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-19 22:35:49,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076255593] [2019-11-19 22:35:49,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:35:49,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:35:49,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:35:49,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:35:49,183 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-11-19 22:35:49,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:35:49,208 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-11-19 22:35:49,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:35:49,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-11-19 22:35:49,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:35:49,216 INFO L225 Difference]: With dead ends: 12 [2019-11-19 22:35:49,216 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:35:49,219 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:35:49,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:35:49,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:35:49,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:35:49,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:35:49,243 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-19 22:35:49,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:35:49,243 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:35:49,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:35:49,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:35:49,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:35:49,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 22:35:49,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:35:49,484 INFO L440 ceAbstractionStarter]: At program point L4-3(line 4) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-19 22:35:49,484 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:35:49,485 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:35:49,485 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:35:49,485 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-11-19 22:35:49,485 INFO L440 ceAbstractionStarter]: At program point L15(lines 6 16) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-19 22:35:49,485 INFO L444 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-11-19 22:35:49,485 INFO L444 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-11-19 22:35:49,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:35:49 BoogieIcfgContainer [2019-11-19 22:35:49,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:35:49,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:35:49,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:35:49,498 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:35:49,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:35:48" (3/4) ... [2019-11-19 22:35:49,502 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:35:49,511 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-19 22:35:49,512 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-19 22:35:49,549 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8902de40-746c-4a3d-8585-64134c234755/bin/uautomizer/witness.graphml [2019-11-19 22:35:49,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:35:49,552 INFO L168 Benchmark]: Toolchain (without parser) took 1150.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:35:49,552 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:35:49,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.16 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:35:49,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -222.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:35:49,554 INFO L168 Benchmark]: Boogie Preprocessor took 26.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:35:49,555 INFO L168 Benchmark]: RCFGBuilder took 166.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:35:49,555 INFO L168 Benchmark]: TraceAbstraction took 624.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:35:49,556 INFO L168 Benchmark]: Witness Printer took 52.05 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. [2019-11-19 22:35:49,558 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.16 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 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 78.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -222.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 166.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 624.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. * Witness Printer took 52.05 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: 4]: 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: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 6 NumberOfNonLiveVariables, 10 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...