./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.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_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/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 eb63ba8209b4429912d8171cad5a1e8773f9c13b ........................................................................................................................................................................................................................ 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_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/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 eb63ba8209b4429912d8171cad5a1e8773f9c13b ............................................................................................................................................................................................................................................................... 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 09:00:33,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:33,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:33,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:33,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:33,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:33,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:33,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:33,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:33,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:33,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:33,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:33,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:33,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:33,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:33,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:33,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:33,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:33,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:33,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:33,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:33,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:33,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:33,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:33,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:33,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:33,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:33,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:33,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:33,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:33,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:33,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:33,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:33,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:33,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:33,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:33,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:33,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:33,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:33,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:33,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:33,669 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:00:33,680 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:33,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:33,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:33,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:33,681 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:33,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:33,682 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:33,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:33,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:33,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:33,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:33,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:33,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:33,683 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:33,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:33,683 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:33,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:33,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:33,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:33,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:33,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:33,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:33,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:33,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:33,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:33,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:33,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:33,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:33,686 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_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/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 -> eb63ba8209b4429912d8171cad5a1e8773f9c13b [2019-10-22 09:00:33,714 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:33,725 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:33,728 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:33,731 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:33,731 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:33,732 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2019-10-22 09:00:33,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/data/6658355c0/e8d06de67da14258805f973299813e33/FLAGdf30cc939 [2019-10-22 09:00:34,109 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:34,109 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2019-10-22 09:00:34,114 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/data/6658355c0/e8d06de67da14258805f973299813e33/FLAGdf30cc939 [2019-10-22 09:00:34,124 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/data/6658355c0/e8d06de67da14258805f973299813e33 [2019-10-22 09:00:34,127 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:34,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:34,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:34,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:34,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:34,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604c87fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34, skipping insertion in model container [2019-10-22 09:00:34,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,142 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:34,154 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:34,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:34,310 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:34,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:34,409 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:34,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34 WrapperNode [2019-10-22 09:00:34,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:34,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:34,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:34,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:34,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:34,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:34,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:34,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:34,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... [2019-10-22 09:00:34,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:34,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:34,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:34,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:34,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/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 09:00:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:34,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:34,608 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:34,608 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 09:00:34,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:34 BoogieIcfgContainer [2019-10-22 09:00:34,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:34,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:34,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:34,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:34,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:34" (1/3) ... [2019-10-22 09:00:34,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60aff9f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:34, skipping insertion in model container [2019-10-22 09:00:34,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:34" (2/3) ... [2019-10-22 09:00:34,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60aff9f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:34, skipping insertion in model container [2019-10-22 09:00:34,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:34" (3/3) ... [2019-10-22 09:00:34,616 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2019-10-22 09:00:34,624 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:34,630 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:00:34,639 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:00:34,657 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:34,657 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:34,657 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:34,657 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:34,657 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:34,657 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:34,657 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:34,658 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:34,670 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-10-22 09:00:34,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 09:00:34,675 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:34,675 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 09:00:34,677 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:34,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:34,682 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 09:00:34,689 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:34,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271942910] [2019-10-22 09:00:34,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:34,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:34,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:34,776 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:34,777 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:34,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:34 BoogieIcfgContainer [2019-10-22 09:00:34,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:34,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:34,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:34,790 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:34,790 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:34" (3/4) ... [2019-10-22 09:00:34,794 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:00:34,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:34,796 INFO L168 Benchmark]: Toolchain (without parser) took 666.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -209.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:34,797 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:34,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -239.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:34,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.78 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 09:00:34,799 INFO L168 Benchmark]: Boogie Preprocessor took 16.00 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 09:00:34,799 INFO L168 Benchmark]: RCFGBuilder took 154.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:34,800 INFO L168 Benchmark]: TraceAbstraction took 179.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:34,800 INFO L168 Benchmark]: Witness Printer took 4.36 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 09:00:34,804 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 280.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -239.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.78 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 16.00 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 154.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 179.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.36 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticFLOAToperation at line 6. Possible FailurePath: [L6] float fs1=2.0f/6.0f; [L7] float fs2=fs1*6.0f; [L8] COND TRUE !((int)fs2==2) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 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=7occurred 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 09:00:36,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:36,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:36,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:36,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:36,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:36,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:36,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:36,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:36,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:36,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:36,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:36,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:36,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:36,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:36,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:36,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:36,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:36,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:36,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:36,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:36,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:36,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:36,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:36,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:36,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:36,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:36,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:36,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:36,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:36,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:36,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:36,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:36,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:36,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:36,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:36,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:36,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:36,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:36,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:36,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:36,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 09:00:36,703 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:36,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:36,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:36,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:36,705 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:36,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:36,705 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:36,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:36,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:36,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:36,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:36,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:36,706 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:00:36,706 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:00:36,706 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:36,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:36,706 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:36,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:36,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:36,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:36,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:36,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:36,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:36,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:36,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:36,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:36,708 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:00:36,708 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:00:36,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:36,708 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:00:36,709 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_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/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 -> eb63ba8209b4429912d8171cad5a1e8773f9c13b [2019-10-22 09:00:36,735 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:36,744 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:36,747 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:36,748 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:36,749 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:36,749 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2019-10-22 09:00:36,792 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/data/f9dd6b5ca/17eb57ae5f9f4bed9581845d27685463/FLAG1fee83608 [2019-10-22 09:00:37,191 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:37,192 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2019-10-22 09:00:37,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/data/f9dd6b5ca/17eb57ae5f9f4bed9581845d27685463/FLAG1fee83608 [2019-10-22 09:00:37,594 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/data/f9dd6b5ca/17eb57ae5f9f4bed9581845d27685463 [2019-10-22 09:00:37,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:37,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:37,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:37,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:37,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:37,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f89c54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37, skipping insertion in model container [2019-10-22 09:00:37,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,610 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:37,623 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:37,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:37,755 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:37,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:37,777 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:37,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37 WrapperNode [2019-10-22 09:00:37,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:37,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:37,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:37,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:37,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:37,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:37,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:37,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:37,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:37,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:37,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:37,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:37,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/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 09:00:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:38,044 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:38,044 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 09:00:38,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:38 BoogieIcfgContainer [2019-10-22 09:00:38,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:38,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:38,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:38,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:38,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:37" (1/3) ... [2019-10-22 09:00:38,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d67243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:38, skipping insertion in model container [2019-10-22 09:00:38,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (2/3) ... [2019-10-22 09:00:38,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d67243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:38, skipping insertion in model container [2019-10-22 09:00:38,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:38" (3/3) ... [2019-10-22 09:00:38,053 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2019-10-22 09:00:38,062 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:38,070 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:00:38,079 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:00:38,097 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:38,097 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:38,097 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:38,098 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:38,098 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:38,098 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:38,098 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:38,098 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:38,113 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-10-22 09:00:38,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 09:00:38,117 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:38,117 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 09:00:38,118 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:38,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:38,122 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 09:00:38,129 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:38,129 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491816738] [2019-10-22 09:00:38,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/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 09:00:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:38,179 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 09:00:38,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:38,223 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 09:00:38,223 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:38,278 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 09:00:38,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491816738] [2019-10-22 09:00:38,280 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:38,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 09:00:38,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503313681] [2019-10-22 09:00:38,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:38,284 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:38,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:38,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:38,319 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2019-10-22 09:00:38,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:38,346 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-10-22 09:00:38,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:38,349 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 09:00:38,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:38,357 INFO L225 Difference]: With dead ends: 10 [2019-10-22 09:00:38,357 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:00:38,360 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 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 09:00:38,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:00:38,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:00:38,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:00:38,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:00:38,386 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-10-22 09:00:38,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:38,386 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:00:38,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:38,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:00:38,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:00:38,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 09:00:38,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:00:38,600 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:00:38,600 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:00:38,600 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:00:38,600 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-10-22 09:00:38,600 INFO L443 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-10-22 09:00:38,601 INFO L443 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2019-10-22 09:00:38,601 INFO L443 ceAbstractionStarter]: For program point L3(lines 3 9) no Hoare annotation was computed. [2019-10-22 09:00:38,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:38 BoogieIcfgContainer [2019-10-22 09:00:38,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:38,604 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:38,604 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:38,604 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:38,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:38" (3/4) ... [2019-10-22 09:00:38,608 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:00:38,616 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 09:00:38,616 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 09:00:38,642 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_30ecf7ea-f59e-4ca2-9c04-9d95885f9ad5/bin/uautomizer/witness.graphml [2019-10-22 09:00:38,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:38,645 INFO L168 Benchmark]: Toolchain (without parser) took 1046.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -153.6 MB). Peak memory consumption was 528.9 kB. Max. memory is 11.5 GB. [2019-10-22 09:00:38,645 INFO L168 Benchmark]: CDTParser took 0.16 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 09:00:38,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.84 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 937.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:38,646 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -212.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:38,646 INFO L168 Benchmark]: Boogie Preprocessor took 17.95 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:38,647 INFO L168 Benchmark]: RCFGBuilder took 165.29 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:38,647 INFO L168 Benchmark]: TraceAbstraction took 557.10 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:38,648 INFO L168 Benchmark]: Witness Printer took 38.98 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 09:00:38,651 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 178.84 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 937.6 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 84.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -212.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.95 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 165.29 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 557.10 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Witness Printer took 38.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 2 NumberOfNonLiveVariables, 6 ConjunctsInSsa, 3 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...