./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/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 e96842f9a03cb3c7d57e4720c2380ee270a08502 ........................................................................................................................................................................................................................... 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/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/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 e96842f9a03cb3c7d57e4720c2380ee270a08502 .................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:06,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:06,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:06,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:06,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:06,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:06,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:06,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:06,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:06,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:06,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:06,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:06,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:06,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:06,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:06,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:06,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:06,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:06,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:06,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:06,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:06,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:06,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:06,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:06,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:06,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:06,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:06,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:06,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:06,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:06,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:06,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:06,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:06,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:06,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:06,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:06,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:06,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:06,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:06,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:06,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:06,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:56:06,133 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:06,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:06,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:06,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:06,134 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:06,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:06,135 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:06,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:06,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:06,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:06,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:06,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:06,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:06,136 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:06,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:06,136 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:06,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:06,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:06,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:06,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:06,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:06,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:06,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:06,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:06,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:06,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:06,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:56:06,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:06,142 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/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2019-10-22 08:56:06,183 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:06,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:06,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:06,200 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:06,201 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:06,202 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2019-10-22 08:56:06,258 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/data/cc1ae87f4/fca4ea17f57b43199fba51f427a72995/FLAG745a827f2 [2019-10-22 08:56:06,675 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:06,677 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2019-10-22 08:56:06,684 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/data/cc1ae87f4/fca4ea17f57b43199fba51f427a72995/FLAG745a827f2 [2019-10-22 08:56:07,049 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/data/cc1ae87f4/fca4ea17f57b43199fba51f427a72995 [2019-10-22 08:56:07,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:07,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:07,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:07,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:07,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:07,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3658c5ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07, skipping insertion in model container [2019-10-22 08:56:07,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,071 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:07,086 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:07,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:07,251 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:07,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:07,355 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:07,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07 WrapperNode [2019-10-22 08:56:07,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:07,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:07,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:07,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:07,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:07,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:07,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:07,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:07,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:07,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:07,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:07,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:07,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/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 [2019-10-22 08:56:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:07,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:07,550 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:07,550 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:56:07,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:07 BoogieIcfgContainer [2019-10-22 08:56:07,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:07,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:07,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:07,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:07,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:07" (1/3) ... [2019-10-22 08:56:07,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780559c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:07, skipping insertion in model container [2019-10-22 08:56:07,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (2/3) ... [2019-10-22 08:56:07,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780559c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:07, skipping insertion in model container [2019-10-22 08:56:07,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:07" (3/3) ... [2019-10-22 08:56:07,558 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2019-10-22 08:56:07,565 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:07,571 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:56:07,579 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:56:07,599 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:07,599 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:07,600 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:07,600 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:07,600 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:07,601 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:07,601 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:07,601 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:07,612 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 08:56:07,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:56:07,617 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:07,617 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:56:07,619 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:07,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:07,624 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-10-22 08:56:07,631 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:07,631 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341717773] [2019-10-22 08:56:07,632 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:07,632 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:07,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:07,710 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:07,710 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:56:07,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:07 BoogieIcfgContainer [2019-10-22 08:56:07,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:07,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:07,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:07,723 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:07,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:07" (3/4) ... [2019-10-22 08:56:07,727 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:56:07,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:07,729 INFO L168 Benchmark]: Toolchain (without parser) took 675.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -107.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:07,730 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:07,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -138.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:07,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.17 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. [2019-10-22 08:56:07,732 INFO L168 Benchmark]: Boogie Preprocessor took 13.01 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. [2019-10-22 08:56:07,732 INFO L168 Benchmark]: RCFGBuilder took 150.88 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:07,733 INFO L168 Benchmark]: TraceAbstraction took 170.00 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: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:07,733 INFO L168 Benchmark]: Witness Printer took 4.25 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. [2019-10-22 08:56:07,736 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 298.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -138.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.17 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. * Boogie Preprocessor took 13.01 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. * RCFGBuilder took 150.88 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 170.00 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: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.25 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: 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 = 1e7f [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-cad4683 [2019-10-22 08:56:09,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:09,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:09,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:09,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:09,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:09,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:09,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:09,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:09,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:09,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:09,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:09,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:09,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:09,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:09,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:09,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:09,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:09,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:09,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:09,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:09,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:09,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:09,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:09,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:09,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:09,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:09,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:09,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:09,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:09,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:09,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:09,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:09,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:09,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:09,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:09,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:09,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:09,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:09,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:09,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:09,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:56:09,841 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:09,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:09,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:09,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:09,843 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:09,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:09,843 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:09,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:09,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:09,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:09,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:09,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:09,844 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:56:09,844 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:56:09,844 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:09,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:09,845 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:09,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:09,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:09,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:09,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:09,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:09,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:09,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:09,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:09,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:09,847 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:56:09,847 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:56:09,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:09,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:56:09,847 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/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2019-10-22 08:56:09,873 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:09,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:09,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:09,886 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:09,887 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:09,887 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2019-10-22 08:56:09,930 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/data/dc40bd9da/64b6c429f2e14d3e887ed78aeeea2b3e/FLAG80baf233c [2019-10-22 08:56:10,309 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:10,309 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2019-10-22 08:56:10,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/data/dc40bd9da/64b6c429f2e14d3e887ed78aeeea2b3e/FLAG80baf233c [2019-10-22 08:56:10,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/data/dc40bd9da/64b6c429f2e14d3e887ed78aeeea2b3e [2019-10-22 08:56:10,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:10,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:10,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:10,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:10,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:10,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:10" (1/1) ... [2019-10-22 08:56:10,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235ef3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10, skipping insertion in model container [2019-10-22 08:56:10,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:10" (1/1) ... [2019-10-22 08:56:10,752 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:10,767 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:10,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:10,936 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:10,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:10,969 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:10,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10 WrapperNode [2019-10-22 08:56:10,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:10,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:10,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:10,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:10,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10" (1/1) ... [2019-10-22 08:56:10,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10" (1/1) ... [2019-10-22 08:56:11,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:11,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:11,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:11,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:11,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10" (1/1) ... [2019-10-22 08:56:11,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10" (1/1) ... [2019-10-22 08:56:11,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10" (1/1) ... [2019-10-22 08:56:11,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10" (1/1) ... [2019-10-22 08:56:11,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10" (1/1) ... [2019-10-22 08:56:11,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10" (1/1) ... [2019-10-22 08:56:11,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10" (1/1) ... [2019-10-22 08:56:11,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:11,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:11,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:11,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:11,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/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 [2019-10-22 08:56:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:11,235 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:11,235 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:56:11,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:11 BoogieIcfgContainer [2019-10-22 08:56:11,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:11,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:11,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:11,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:11,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:10" (1/3) ... [2019-10-22 08:56:11,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f82ebea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:11, skipping insertion in model container [2019-10-22 08:56:11,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:10" (2/3) ... [2019-10-22 08:56:11,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f82ebea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:11, skipping insertion in model container [2019-10-22 08:56:11,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:11" (3/3) ... [2019-10-22 08:56:11,243 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2019-10-22 08:56:11,253 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:11,258 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:56:11,265 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:56:11,285 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:11,285 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:11,285 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:11,285 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:11,285 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:11,285 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:11,285 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:11,286 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:11,299 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 08:56:11,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:56:11,304 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:11,304 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:56:11,306 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:11,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:11,311 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-10-22 08:56:11,319 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:56:11,319 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287450165] [2019-10-22 08:56:11,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/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 [2019-10-22 08:56:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:11,441 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 08:56:11,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:11,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:11,504 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:56:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:11,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287450165] [2019-10-22 08:56:11,514 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:11,514 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 08:56:11,515 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091161370] [2019-10-22 08:56:11,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:11,518 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:56:11,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:11,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:11,531 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-10-22 08:56:11,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:11,554 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-10-22 08:56:11,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:11,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 08:56:11,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:11,560 INFO L225 Difference]: With dead ends: 12 [2019-10-22 08:56:11,561 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:56:11,563 INFO L600 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 [2019-10-22 08:56:11,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:56:11,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:56:11,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:56:11,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:56:11,581 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-10-22 08:56:11,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:11,581 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:11,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:11,581 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:56:11,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:56:11,782 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:56:11,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:56:11,818 INFO L439 ceAbstractionStarter]: At program point L4-3(line 4) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-10-22 08:56:11,818 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:56:11,819 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:56:11,819 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:56:11,819 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-10-22 08:56:11,819 INFO L439 ceAbstractionStarter]: At program point L15(lines 6 16) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-10-22 08:56:11,819 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-10-22 08:56:11,819 INFO L443 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-10-22 08:56:11,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:11 BoogieIcfgContainer [2019-10-22 08:56:11,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:11,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:11,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:11,828 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:11,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:11" (3/4) ... [2019-10-22 08:56:11,831 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:56:11,839 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 08:56:11,839 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:56:11,870 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b16c7976-d70d-4554-b0e6-5282ea4b1c94/bin/uautomizer/witness.graphml [2019-10-22 08:56:11,870 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:11,872 INFO L168 Benchmark]: Toolchain (without parser) took 1135.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -116.2 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:11,872 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:11,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.09 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:11,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:11,874 INFO L168 Benchmark]: Boogie Preprocessor took 26.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:11,874 INFO L168 Benchmark]: RCFGBuilder took 154.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:11,875 INFO L168 Benchmark]: TraceAbstraction took 590.07 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:11,875 INFO L168 Benchmark]: Witness Printer took 42.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:11,878 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 233.09 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 154.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 590.07 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Witness Printer took 42.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. 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, 0.0s 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...