./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/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/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/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-cad4683 [2019-10-22 08:56:17,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:17,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:17,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:17,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:17,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:17,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:17,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:17,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:17,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:17,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:17,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:17,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:17,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:17,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:17,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:17,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:17,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:17,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:17,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:17,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:17,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:17,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:17,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:17,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:17,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:17,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:17,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:17,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:17,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:17,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:17,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:17,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:17,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:17,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:17,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:17,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:17,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:17,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:17,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:17,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:17,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:56:17,682 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:17,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:17,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:17,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:17,686 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:17,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:17,686 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:17,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:17,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:17,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:17,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:17,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:17,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:17,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:17,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:17,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:17,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:17,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:56:17,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:17,689 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_28c1bcae-0d05-4f0d-b045-884b44be3ad8/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 [2019-10-22 08:56:17,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:17,731 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:17,734 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:17,736 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:17,736 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:17,737 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-10-22 08:56:17,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/data/29a62070a/2914c2fe6c84450c9727ada5992f94da/FLAG6e6a7750c [2019-10-22 08:56:18,154 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:18,154 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-10-22 08:56:18,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/data/29a62070a/2914c2fe6c84450c9727ada5992f94da/FLAG6e6a7750c [2019-10-22 08:56:18,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/data/29a62070a/2914c2fe6c84450c9727ada5992f94da [2019-10-22 08:56:18,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:18,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:18,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:18,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:18,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:18,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b17023b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18, skipping insertion in model container [2019-10-22 08:56:18,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,186 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:18,199 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:18,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:18,341 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:18,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:18,445 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:18,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18 WrapperNode [2019-10-22 08:56:18,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:18,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:18,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:18,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:18,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:18,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:18,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:18,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:18,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:18,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:18,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:18,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:18,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/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 08:56:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:18,645 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:18,645 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:56:18,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:18 BoogieIcfgContainer [2019-10-22 08:56:18,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:18,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:18,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:18,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:18,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:18" (1/3) ... [2019-10-22 08:56:18,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfe6a3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:18, skipping insertion in model container [2019-10-22 08:56:18,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18" (2/3) ... [2019-10-22 08:56:18,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfe6a3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:18, skipping insertion in model container [2019-10-22 08:56:18,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:18" (3/3) ... [2019-10-22 08:56:18,654 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2019-10-22 08:56:18,663 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:18,669 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:56:18,679 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:56:18,700 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:18,700 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:18,700 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:18,700 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:18,700 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:18,700 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:18,700 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:18,700 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 08:56:18,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:56:18,718 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:18,719 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:56:18,721 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:18,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:18,727 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-10-22 08:56:18,737 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:18,737 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128777565] [2019-10-22 08:56:18,737 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:18,737 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:18,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:18,834 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:18,835 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:56:18,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:18 BoogieIcfgContainer [2019-10-22 08:56:18,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:18,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:18,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:18,852 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:18,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:18" (3/4) ... [2019-10-22 08:56:18,856 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:56:18,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:18,858 INFO L168 Benchmark]: Toolchain (without parser) took 684.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:18,859 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:18,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -200.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:18,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.02 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. [2019-10-22 08:56:18,860 INFO L168 Benchmark]: Boogie Preprocessor took 12.42 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. [2019-10-22 08:56:18,861 INFO L168 Benchmark]: RCFGBuilder took 158.40 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. [2019-10-22 08:56:18,861 INFO L168 Benchmark]: TraceAbstraction took 203.89 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:18,862 INFO L168 Benchmark]: Witness Printer took 4.64 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. [2019-10-22 08:56:18,865 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 272.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -200.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.02 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 12.42 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 158.40 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 203.89 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.64 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-cad4683 [2019-10-22 08:56:21,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:21,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:21,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:21,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:21,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:21,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:21,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:21,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:21,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:21,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:21,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:21,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:21,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:21,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:21,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:21,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:21,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:21,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:21,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:21,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:21,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:21,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:21,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:21,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:21,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:21,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:21,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:21,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:21,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:21,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:21,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:21,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:21,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:21,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:21,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:21,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:21,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:21,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:21,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:21,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:21,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:56:21,082 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:21,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:21,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:21,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:21,085 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:21,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:21,085 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:21,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:21,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:21,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:21,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:21,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:21,086 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:56:21,086 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:56:21,087 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:21,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:21,087 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:21,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:21,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:21,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:21,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:21,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:21,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:21,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:21,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:21,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:21,089 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:56:21,089 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:56:21,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:21,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:56:21,093 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_28c1bcae-0d05-4f0d-b045-884b44be3ad8/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 [2019-10-22 08:56:21,132 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:21,142 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:21,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:21,146 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:21,147 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:21,147 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-10-22 08:56:21,191 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/data/2fefafdda/0a944c34c16f4588b60be230260baeaf/FLAG4993cdf03 [2019-10-22 08:56:21,568 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:21,568 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-10-22 08:56:21,573 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/data/2fefafdda/0a944c34c16f4588b60be230260baeaf/FLAG4993cdf03 [2019-10-22 08:56:21,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/data/2fefafdda/0a944c34c16f4588b60be230260baeaf [2019-10-22 08:56:21,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:21,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:21,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:21,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:21,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:21,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adba133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21, skipping insertion in model container [2019-10-22 08:56:21,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,600 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:21,613 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:21,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:21,769 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:21,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:21,797 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:21,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21 WrapperNode [2019-10-22 08:56:21,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:21,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:21,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:21,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:21,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:21,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:21,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:21,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:21,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:21,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:21,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:21,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:21,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/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 08:56:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:22,140 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:22,141 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:56:22,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:22 BoogieIcfgContainer [2019-10-22 08:56:22,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:22,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:22,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:22,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:22,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:21" (1/3) ... [2019-10-22 08:56:22,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2635f8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:22, skipping insertion in model container [2019-10-22 08:56:22,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (2/3) ... [2019-10-22 08:56:22,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2635f8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:22, skipping insertion in model container [2019-10-22 08:56:22,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:22" (3/3) ... [2019-10-22 08:56:22,153 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2019-10-22 08:56:22,163 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:22,169 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:56:22,178 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:56:22,199 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:22,200 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:22,200 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:22,200 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:22,200 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:22,200 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:22,201 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:22,201 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:22,217 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 08:56:22,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:56:22,227 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:22,228 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:56:22,230 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:22,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:22,235 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-10-22 08:56:22,245 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:56:22,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779746809] [2019-10-22 08:56:22,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/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 08:56:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:22,386 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 08:56:22,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:22,454 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 08:56:22,454 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:56:22,462 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 08:56:22,463 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779746809] [2019-10-22 08:56:22,464 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:22,464 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 08:56:22,464 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965752824] [2019-10-22 08:56:22,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:22,469 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:56:22,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:22,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:22,486 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-10-22 08:56:22,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:22,510 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-10-22 08:56:22,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:22,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 08:56:22,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:22,518 INFO L225 Difference]: With dead ends: 12 [2019-10-22 08:56:22,519 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:56:22,521 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 08:56:22,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:56:22,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:56:22,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:56:22,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:56:22,543 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-10-22 08:56:22,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:22,543 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:22,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:22,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:56:22,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:56:22,744 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:56:22,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:56:22,786 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 08:56:22,787 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:56:22,787 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-10-22 08:56:22,787 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:56:22,787 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:56:22,787 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 08:56:22,787 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-10-22 08:56:22,787 INFO L443 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-10-22 08:56:22,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:22 BoogieIcfgContainer [2019-10-22 08:56:22,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:22,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:22,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:22,798 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:22,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:22" (3/4) ... [2019-10-22 08:56:22,803 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:56:22,812 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 08:56:22,812 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:56:22,848 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_28c1bcae-0d05-4f0d-b045-884b44be3ad8/bin/uautomizer/witness.graphml [2019-10-22 08:56:22,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:22,851 INFO L168 Benchmark]: Toolchain (without parser) took 1264.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -91.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:22,851 INFO L168 Benchmark]: CDTParser took 0.14 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 08:56:22,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.05 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 08:56:22,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:22,853 INFO L168 Benchmark]: Boogie Preprocessor took 32.58 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:22,854 INFO L168 Benchmark]: RCFGBuilder took 217.23 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:22,854 INFO L168 Benchmark]: TraceAbstraction took 654.91 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: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:22,855 INFO L168 Benchmark]: Witness Printer took 50.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:22,857 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 212.05 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 93.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.58 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 217.23 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 654.91 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: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 11.5 GB. * Witness Printer took 50.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 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, 0.1s 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...