./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/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 ca3708fe76c0d5fcf2081cc4044485827bf478fe ......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/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 ca3708fe76c0d5fcf2081cc4044485827bf478fe ................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:01:22,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:01:22,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:01:22,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:01:22,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:01:22,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:01:22,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:01:22,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:01:22,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:01:22,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:01:22,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:01:22,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:01:22,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:01:22,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:01:22,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:01:22,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:01:22,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:01:22,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:01:22,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:01:22,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:01:22,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:01:22,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:01:22,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:01:22,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:01:22,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:01:22,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:01:22,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:01:22,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:01:22,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:01:22,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:01:22,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:01:22,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:01:22,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:01:22,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:01:22,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:01:22,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:01:22,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:01:22,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:01:22,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:01:22,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:01:22,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:01:22,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 11:01:22,999 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:01:23,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:01:23,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:01:23,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:01:23,010 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:01:23,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:01:23,011 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:01:23,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:01:23,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:01:23,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:01:23,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:01:23,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:01:23,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:01:23,012 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:01:23,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:01:23,013 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:01:23,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:01:23,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:01:23,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:01:23,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:01:23,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:01:23,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:01:23,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:01:23,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:01:23,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:01:23,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:01:23,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 11:01:23,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:01:23,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/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 -> ca3708fe76c0d5fcf2081cc4044485827bf478fe [2019-11-20 11:01:23,187 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:01:23,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:01:23,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:01:23,207 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:01:23,207 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:01:23,208 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-11-20 11:01:23,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/data/8937b5154/b8de6772f40946b6a3887b57e613e3fb/FLAGdd883ab68 [2019-11-20 11:01:23,633 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:01:23,634 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-11-20 11:01:23,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/data/8937b5154/b8de6772f40946b6a3887b57e613e3fb/FLAGdd883ab68 [2019-11-20 11:01:24,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/data/8937b5154/b8de6772f40946b6a3887b57e613e3fb [2019-11-20 11:01:24,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:01:24,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:01:24,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:01:24,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:01:24,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:01:24,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:01:24" (1/1) ... [2019-11-20 11:01:24,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9c4f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24, skipping insertion in model container [2019-11-20 11:01:24,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:01:24" (1/1) ... [2019-11-20 11:01:24,075 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:01:24,093 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:01:24,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:01:24,275 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:01:24,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:01:24,361 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:01:24,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24 WrapperNode [2019-11-20 11:01:24,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:01:24,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:01:24,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:01:24,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:01:24,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24" (1/1) ... [2019-11-20 11:01:24,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24" (1/1) ... [2019-11-20 11:01:24,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:01:24,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:01:24,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:01:24,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:01:24,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24" (1/1) ... [2019-11-20 11:01:24,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24" (1/1) ... [2019-11-20 11:01:24,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24" (1/1) ... [2019-11-20 11:01:24,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24" (1/1) ... [2019-11-20 11:01:24,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24" (1/1) ... [2019-11-20 11:01:24,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24" (1/1) ... [2019-11-20 11:01:24,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24" (1/1) ... [2019-11-20 11:01:24,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:01:24,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:01:24,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:01:24,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:01:24,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:01:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:01:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:01:24,627 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:01:24,627 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 11:01:24,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:24 BoogieIcfgContainer [2019-11-20 11:01:24,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:01:24,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:01:24,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:01:24,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:01:24,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:01:24" (1/3) ... [2019-11-20 11:01:24,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502304ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:01:24, skipping insertion in model container [2019-11-20 11:01:24,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:24" (2/3) ... [2019-11-20 11:01:24,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502304ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:01:24, skipping insertion in model container [2019-11-20 11:01:24,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:24" (3/3) ... [2019-11-20 11:01:24,636 INFO L109 eAbstractionObserver]: Analyzing ICFG float12.c [2019-11-20 11:01:24,646 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:01:24,652 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 11:01:24,663 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 11:01:24,693 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:01:24,693 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:01:24,693 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:01:24,694 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:01:24,694 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:01:24,694 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:01:24,694 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:01:24,695 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:01:24,710 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-20 11:01:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 11:01:24,717 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:01:24,718 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 11:01:24,718 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:01:24,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:01:24,724 INFO L82 PathProgramCache]: Analyzing trace with hash 957381, now seen corresponding path program 1 times [2019-11-20 11:01:24,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:01:24,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333815900] [2019-11-20 11:01:24,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:01:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:01:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:01:24,840 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:01:24,841 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 11:01:24,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:01:24 BoogieIcfgContainer [2019-11-20 11:01:24,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:01:24,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:01:24,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:01:24,860 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:01:24,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:24" (3/4) ... [2019-11-20 11:01:24,864 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 11:01:24,864 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:01:24,868 INFO L168 Benchmark]: Toolchain (without parser) took 810.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -187.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:01:24,869 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:01:24,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -215.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:24,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:01:24,873 INFO L168 Benchmark]: Boogie Preprocessor took 16.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:01:24,874 INFO L168 Benchmark]: RCFGBuilder took 220.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:24,874 INFO L168 Benchmark]: TraceAbstraction took 230.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:24,875 INFO L168 Benchmark]: Witness Printer took 4.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:01:24,883 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -215.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.56 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 16.52 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 220.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 230.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L6] float f = __VERIFIER_nondet_float(); [L7] double d; [L8] unsigned char x = __VERIFIER_nondet_uchar(); [L10] d=f [L12] COND TRUE f==x [L13] COND TRUE !(d==x) [L13] __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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 11:01:26,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:01:26,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:01:26,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:01:26,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:01:26,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:01:26,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:01:26,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:01:26,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:01:26,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:01:26,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:01:26,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:01:26,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:01:26,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:01:26,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:01:26,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:01:26,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:01:26,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:01:26,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:01:26,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:01:26,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:01:26,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:01:26,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:01:26,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:01:26,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:01:26,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:01:26,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:01:26,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:01:26,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:01:26,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:01:26,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:01:26,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:01:26,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:01:26,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:01:26,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:01:26,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:01:26,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:01:26,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:01:26,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:01:26,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:01:26,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:01:26,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 11:01:26,794 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:01:26,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:01:26,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:01:26,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:01:26,796 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:01:26,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:01:26,796 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:01:26,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:01:26,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:01:26,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:01:26,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:01:26,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:01:26,798 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 11:01:26,798 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 11:01:26,798 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:01:26,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:01:26,798 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:01:26,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:01:26,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:01:26,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:01:26,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:01:26,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:01:26,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:01:26,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:01:26,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:01:26,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:01:26,801 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 11:01:26,801 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 11:01:26,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:01:26,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 11:01:26,802 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/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 -> ca3708fe76c0d5fcf2081cc4044485827bf478fe [2019-11-20 11:01:27,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:01:27,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:01:27,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:01:27,141 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:01:27,142 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:01:27,143 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-11-20 11:01:27,201 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/data/40c4ae395/3bf40114b7364931883fd531305ac493/FLAG8789cd679 [2019-11-20 11:01:27,605 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:01:27,606 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-11-20 11:01:27,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/data/40c4ae395/3bf40114b7364931883fd531305ac493/FLAG8789cd679 [2019-11-20 11:01:27,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/data/40c4ae395/3bf40114b7364931883fd531305ac493 [2019-11-20 11:01:27,627 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:01:27,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:01:27,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:01:27,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:01:27,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:01:27,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:01:27" (1/1) ... [2019-11-20 11:01:27,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3239e702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27, skipping insertion in model container [2019-11-20 11:01:27,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:01:27" (1/1) ... [2019-11-20 11:01:27,648 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:01:27,662 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:01:27,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:01:27,788 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:01:27,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:01:27,818 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:01:27,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27 WrapperNode [2019-11-20 11:01:27,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:01:27,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:01:27,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:01:27,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:01:27,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27" (1/1) ... [2019-11-20 11:01:27,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27" (1/1) ... [2019-11-20 11:01:27,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:01:27,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:01:27,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:01:27,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:01:27,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27" (1/1) ... [2019-11-20 11:01:27,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27" (1/1) ... [2019-11-20 11:01:27,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27" (1/1) ... [2019-11-20 11:01:27,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27" (1/1) ... [2019-11-20 11:01:27,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27" (1/1) ... [2019-11-20 11:01:27,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27" (1/1) ... [2019-11-20 11:01:27,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27" (1/1) ... [2019-11-20 11:01:27,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:01:27,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:01:27,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:01:27,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:01:27,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:01:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:01:27,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:01:28,154 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:01:28,154 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 11:01:28,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:28 BoogieIcfgContainer [2019-11-20 11:01:28,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:01:28,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:01:28,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:01:28,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:01:28,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:01:27" (1/3) ... [2019-11-20 11:01:28,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e57ec39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:01:28, skipping insertion in model container [2019-11-20 11:01:28,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:27" (2/3) ... [2019-11-20 11:01:28,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e57ec39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:01:28, skipping insertion in model container [2019-11-20 11:01:28,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:28" (3/3) ... [2019-11-20 11:01:28,162 INFO L109 eAbstractionObserver]: Analyzing ICFG float12.c [2019-11-20 11:01:28,171 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:01:28,177 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 11:01:28,187 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 11:01:28,208 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:01:28,209 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:01:28,209 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:01:28,209 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:01:28,209 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:01:28,209 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:01:28,209 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:01:28,209 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:01:28,222 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-20 11:01:28,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 11:01:28,227 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:01:28,228 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 11:01:28,229 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:01:28,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:01:28,234 INFO L82 PathProgramCache]: Analyzing trace with hash 957381, now seen corresponding path program 1 times [2019-11-20 11:01:28,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:01:28,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339215292] [2019-11-20 11:01:28,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 11:01:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:01:28,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:01:28,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:01:29,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:01:29,090 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:01:30,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:01:30,408 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339215292] [2019-11-20 11:01:30,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:01:30,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-20 11:01:30,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457211423] [2019-11-20 11:01:30,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 11:01:30,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:01:30,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 11:01:30,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:01:30,425 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 6 states. [2019-11-20 11:01:32,542 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2019-11-20 11:01:32,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:01:32,687 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2019-11-20 11:01:32,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 11:01:32,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-11-20 11:01:32,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:01:32,699 INFO L225 Difference]: With dead ends: 14 [2019-11-20 11:01:32,699 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 11:01:32,702 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:01:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 11:01:32,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 11:01:32,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 11:01:32,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 11:01:32,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-20 11:01:32,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:01:32,721 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:01:32,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 11:01:32,721 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:01:32,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 11:01:32,922 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 11:01:32,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 11:01:32,928 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 11:01:32,928 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 11:01:32,928 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 11:01:32,928 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-11-20 11:01:32,928 INFO L444 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-11-20 11:01:32,928 INFO L444 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. [2019-11-20 11:01:32,929 INFO L444 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-11-20 11:01:32,929 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 14) no Hoare annotation was computed. [2019-11-20 11:01:32,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:01:32 BoogieIcfgContainer [2019-11-20 11:01:32,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:01:32,931 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:01:32,931 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:01:32,931 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:01:32,932 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:28" (3/4) ... [2019-11-20 11:01:32,934 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 11:01:32,943 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 11:01:32,943 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 11:01:32,974 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2f1fee87-08eb-416e-90e3-7b762e7530cf/bin/uautomizer/witness.graphml [2019-11-20 11:01:32,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:01:32,975 INFO L168 Benchmark]: Toolchain (without parser) took 5346.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -123.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:32,976 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:01:32,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.48 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:32,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:32,978 INFO L168 Benchmark]: Boogie Preprocessor took 20.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:01:32,978 INFO L168 Benchmark]: RCFGBuilder took 233.53 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:32,979 INFO L168 Benchmark]: TraceAbstraction took 4775.09 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: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:32,980 INFO L168 Benchmark]: Witness Printer took 42.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:01:32,983 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.48 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.40 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. * RCFGBuilder took 233.53 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4775.09 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: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. * Witness Printer took 42.71 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: 13]: 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, 8 locations, 1 error locations. Result: SAFE, OverallTime: 4.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.8s 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, 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, 2.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 111 SizeOfPredicates, 4 NumberOfNonLiveVariables, 8 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...