./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/float_double.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_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/float_double.c -s /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/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 773baadb55b498633b84884838d360efb3aec808 ........................................................................................................................................................................................................................ 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_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/float_double.c -s /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/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 773baadb55b498633b84884838d360efb3aec808 .................................................................................................................................................................................................................................................................... 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 08:54:29,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:29,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:29,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:29,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:29,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:29,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:29,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:29,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:29,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:29,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:29,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:29,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:29,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:29,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:29,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:29,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:29,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:29,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:29,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:29,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:29,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:29,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:29,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:29,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:29,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:29,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:29,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:29,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:29,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:29,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:29,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:29,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:29,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:29,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:29,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:29,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:29,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:29,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:29,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:29,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:29,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:29,747 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:29,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:29,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:29,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:29,748 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:29,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:29,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:29,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:29,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:29,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:29,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:29,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:29,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:29,750 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:29,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:29,750 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:29,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:29,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:29,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:29,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:29,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:29,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:29,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:29,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:29,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:29,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:29,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:29,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:29,752 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_908cacc6-d02d-4435-ae06-79719dcae605/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 -> 773baadb55b498633b84884838d360efb3aec808 [2019-10-22 08:54:29,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:29,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:29,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:29,801 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:29,801 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:29,802 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/../../sv-benchmarks/c/float-benchs/float_double.c [2019-10-22 08:54:29,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/data/2676e8a42/6605fd31e1504d50af49a086c05fb29c/FLAG40d45aabc [2019-10-22 08:54:30,235 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:30,235 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/sv-benchmarks/c/float-benchs/float_double.c [2019-10-22 08:54:30,241 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/data/2676e8a42/6605fd31e1504d50af49a086c05fb29c/FLAG40d45aabc [2019-10-22 08:54:30,658 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/data/2676e8a42/6605fd31e1504d50af49a086c05fb29c [2019-10-22 08:54:30,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:30,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:30,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:30,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:30,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:30,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac4d37c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30, skipping insertion in model container [2019-10-22 08:54:30,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,673 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:30,683 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:30,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:30,810 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:30,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:30,897 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:30,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30 WrapperNode [2019-10-22 08:54:30,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:30,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:30,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:30,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:30,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:30,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:30,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:30,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:30,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:30,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:30,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:30,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:30,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/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 08:54:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:30,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:31,087 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:31,087 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:54:31,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:31 BoogieIcfgContainer [2019-10-22 08:54:31,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:31,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:31,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:31,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:31,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:30" (1/3) ... [2019-10-22 08:54:31,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5299dce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:31, skipping insertion in model container [2019-10-22 08:54:31,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (2/3) ... [2019-10-22 08:54:31,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5299dce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:31, skipping insertion in model container [2019-10-22 08:54:31,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:31" (3/3) ... [2019-10-22 08:54:31,095 INFO L109 eAbstractionObserver]: Analyzing ICFG float_double.c [2019-10-22 08:54:31,102 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:31,107 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:31,114 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:31,131 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:31,131 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:31,131 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:31,131 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:31,131 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:31,131 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:31,131 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:31,132 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:31,142 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 08:54:31,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:54:31,147 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:31,147 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:54:31,148 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:31,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:31,152 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-10-22 08:54:31,157 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:31,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822395484] [2019-10-22 08:54:31,158 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:31,158 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:31,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:31,238 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:31,239 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:54:31,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:31 BoogieIcfgContainer [2019-10-22 08:54:31,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:31,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:31,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:31,251 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:31,252 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:31" (3/4) ... [2019-10-22 08:54:31,255 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:54:31,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:31,257 INFO L168 Benchmark]: Toolchain (without parser) took 595.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -129.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:31,258 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:31,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:31,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.06 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 08:54:31,260 INFO L168 Benchmark]: Boogie Preprocessor took 12.81 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 08:54:31,260 INFO L168 Benchmark]: RCFGBuilder took 150.14 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:31,261 INFO L168 Benchmark]: TraceAbstraction took 161.56 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:31,261 INFO L168 Benchmark]: Witness Printer took 4.34 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 08:54:31,265 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 962.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.06 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 12.81 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 150.14 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 161.56 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.34 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 someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 8. Possible FailurePath: [L8] double x = 1e20 + 1.; [L9] float y = x; [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 08:54:33,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:33,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:33,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:33,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:33,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:33,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:33,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:33,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:33,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:33,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:33,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:33,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:33,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:33,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:33,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:33,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:33,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:33,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:33,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:33,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:33,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:33,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:33,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:33,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:33,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:33,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:33,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:33,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:33,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:33,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:33,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:33,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:33,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:33,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:33,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:33,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:33,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:33,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:33,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:33,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:33,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:54:33,379 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:33,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:33,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:33,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:33,384 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:33,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:33,385 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:33,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:33,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:33,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:33,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:33,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:33,387 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:54:33,387 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:54:33,387 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:33,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:33,388 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:33,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:33,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:33,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:33,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:33,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:33,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:33,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:33,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:33,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:33,389 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:54:33,390 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:54:33,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:33,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:54:33,390 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_908cacc6-d02d-4435-ae06-79719dcae605/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 -> 773baadb55b498633b84884838d360efb3aec808 [2019-10-22 08:54:33,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:33,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:33,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:33,443 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:33,443 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:33,444 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/../../sv-benchmarks/c/float-benchs/float_double.c [2019-10-22 08:54:33,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/data/ee3985f94/37e1c252a0354b12b80d2a5d1848dd33/FLAGbb74d06b9 [2019-10-22 08:54:33,890 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:33,891 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/sv-benchmarks/c/float-benchs/float_double.c [2019-10-22 08:54:33,897 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/data/ee3985f94/37e1c252a0354b12b80d2a5d1848dd33/FLAGbb74d06b9 [2019-10-22 08:54:34,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/data/ee3985f94/37e1c252a0354b12b80d2a5d1848dd33 [2019-10-22 08:54:34,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:34,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:34,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:34,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:34,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:34,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:34" (1/1) ... [2019-10-22 08:54:34,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29caff0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34, skipping insertion in model container [2019-10-22 08:54:34,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:34" (1/1) ... [2019-10-22 08:54:34,323 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:34,337 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:34,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:34,494 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:34,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:34,524 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:34,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34 WrapperNode [2019-10-22 08:54:34,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:34,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:34,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:34,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:34,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34" (1/1) ... [2019-10-22 08:54:34,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34" (1/1) ... [2019-10-22 08:54:34,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:34,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:34,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:34,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:34,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34" (1/1) ... [2019-10-22 08:54:34,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34" (1/1) ... [2019-10-22 08:54:34,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34" (1/1) ... [2019-10-22 08:54:34,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34" (1/1) ... [2019-10-22 08:54:34,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34" (1/1) ... [2019-10-22 08:54:34,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34" (1/1) ... [2019-10-22 08:54:34,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34" (1/1) ... [2019-10-22 08:54:34,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:34,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:34,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:34,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:34,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/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 08:54:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:34,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:34,870 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:34,871 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:54:34,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:34 BoogieIcfgContainer [2019-10-22 08:54:34,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:34,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:34,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:34,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:34,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:34" (1/3) ... [2019-10-22 08:54:34,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38894030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:34, skipping insertion in model container [2019-10-22 08:54:34,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:34" (2/3) ... [2019-10-22 08:54:34,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38894030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:34, skipping insertion in model container [2019-10-22 08:54:34,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:34" (3/3) ... [2019-10-22 08:54:34,880 INFO L109 eAbstractionObserver]: Analyzing ICFG float_double.c [2019-10-22 08:54:34,890 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:34,896 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:34,904 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:34,926 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:34,926 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:34,926 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:34,927 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:34,927 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:34,927 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:34,927 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:34,927 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:34,941 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 08:54:34,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:54:34,947 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:34,948 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:54:34,949 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:34,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:34,955 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-10-22 08:54:34,964 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:54:34,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42258811] [2019-10-22 08:54:34,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/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 08:54:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:35,035 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:54:35,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:35,217 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 08:54:35,218 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:54:35,242 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 08:54:35,243 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42258811] [2019-10-22 08:54:35,244 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:35,244 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 08:54:35,244 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284512164] [2019-10-22 08:54:35,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:35,249 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:54:35,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:35,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:35,265 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-10-22 08:54:35,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:35,282 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-10-22 08:54:35,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:35,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 08:54:35,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:35,291 INFO L225 Difference]: With dead ends: 12 [2019-10-22 08:54:35,291 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:54:35,294 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 08:54:35,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:54:35,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:54:35,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:54:35,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:54:35,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-10-22 08:54:35,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:35,317 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:54:35,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:35,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:54:35,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:54:35,530 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:54:35,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:54:35,584 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 08:54:35,585 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:54:35,585 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:54:35,585 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:54:35,585 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-10-22 08:54:35,585 INFO L439 ceAbstractionStarter]: At program point L11(lines 6 12) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-10-22 08:54:35,585 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-10-22 08:54:35,585 INFO L443 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-10-22 08:54:35,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:35 BoogieIcfgContainer [2019-10-22 08:54:35,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:35,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:35,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:35,596 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:35,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:34" (3/4) ... [2019-10-22 08:54:35,600 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:54:35,609 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 08:54:35,610 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:54:35,641 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_908cacc6-d02d-4435-ae06-79719dcae605/bin/uautomizer/witness.graphml [2019-10-22 08:54:35,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:35,644 INFO L168 Benchmark]: Toolchain (without parser) took 1340.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:35,644 INFO L168 Benchmark]: CDTParser took 0.18 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 08:54:35,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.89 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 08:54:35,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 941.6 MB in the beginning and 1.2 GB in the end (delta: -212.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:35,646 INFO L168 Benchmark]: Boogie Preprocessor took 20.53 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 08:54:35,646 INFO L168 Benchmark]: RCFGBuilder took 208.74 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: 18.5 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:35,647 INFO L168 Benchmark]: TraceAbstraction took 722.32 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:35,647 INFO L168 Benchmark]: Witness Printer took 45.92 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:35,650 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 221.89 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 116.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 941.6 MB in the beginning and 1.2 GB in the end (delta: -212.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.53 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 208.74 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: 18.5 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 722.32 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * Witness Printer took 45.92 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: 6.6 MB). Peak memory consumption was 6.6 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: 0.6s, 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, 0.2s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 4 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 4 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...