./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/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_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/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-cad4683 [2019-11-16 00:09:53,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:09:53,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:09:53,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:09:53,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:09:53,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:09:53,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:09:53,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:09:53,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:09:53,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:09:53,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:09:53,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:09:53,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:09:53,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:09:53,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:09:53,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:09:53,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:09:53,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:09:53,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:09:53,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:09:53,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:09:53,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:09:53,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:09:53,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:09:53,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:09:53,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:09:53,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:09:53,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:09:53,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:09:53,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:09:53,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:09:53,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:09:53,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:09:53,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:09:53,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:09:53,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:09:53,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:09:53,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:09:53,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:09:53,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:09:53,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:09:53,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:09:53,102 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:09:53,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:09:53,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:09:53,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:09:53,104 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:09:53,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:09:53,104 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:09:53,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:09:53,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:09:53,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:09:53,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:09:53,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:09:53,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:09:53,106 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:09:53,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:09:53,106 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:09:53,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:09:53,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:09:53,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:09:53,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:09:53,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:09:53,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:09:53,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:09:53,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:09:53,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:09:53,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:09:53,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:09:53,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:09:53,113 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_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/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 [2019-11-16 00:09:53,154 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:09:53,164 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:09:53,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:09:53,169 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:09:53,169 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:09:53,170 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-11-16 00:09:53,221 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/data/baf6cfea5/cc7482e772af4bd7aac083d9377951b0/FLAG99c012773 [2019-11-16 00:09:53,626 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:09:53,627 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-11-16 00:09:53,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/data/baf6cfea5/cc7482e772af4bd7aac083d9377951b0/FLAG99c012773 [2019-11-16 00:09:54,017 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/data/baf6cfea5/cc7482e772af4bd7aac083d9377951b0 [2019-11-16 00:09:54,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:09:54,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:09:54,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:09:54,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:09:54,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:09:54,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:54" (1/1) ... [2019-11-16 00:09:54,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4146e191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54, skipping insertion in model container [2019-11-16 00:09:54,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:54" (1/1) ... [2019-11-16 00:09:54,039 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:09:54,052 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:09:54,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:09:54,211 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:09:54,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:09:54,294 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:09:54,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54 WrapperNode [2019-11-16 00:09:54,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:09:54,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:09:54,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:09:54,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:09:54,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54" (1/1) ... [2019-11-16 00:09:54,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54" (1/1) ... [2019-11-16 00:09:54,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:09:54,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:09:54,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:09:54,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:09:54,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54" (1/1) ... [2019-11-16 00:09:54,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54" (1/1) ... [2019-11-16 00:09:54,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54" (1/1) ... [2019-11-16 00:09:54,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54" (1/1) ... [2019-11-16 00:09:54,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54" (1/1) ... [2019-11-16 00:09:54,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54" (1/1) ... [2019-11-16 00:09:54,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54" (1/1) ... [2019-11-16 00:09:54,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:09:54,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:09:54,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:09:54,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:09:54,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/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 [2019-11-16 00:09:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:09:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:09:54,493 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:09:54,493 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-16 00:09:54,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:54 BoogieIcfgContainer [2019-11-16 00:09:54,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:09:54,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:09:54,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:09:54,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:09:54,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:09:54" (1/3) ... [2019-11-16 00:09:54,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cc53fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:54, skipping insertion in model container [2019-11-16 00:09:54,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:54" (2/3) ... [2019-11-16 00:09:54,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cc53fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:54, skipping insertion in model container [2019-11-16 00:09:54,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:54" (3/3) ... [2019-11-16 00:09:54,501 INFO L109 eAbstractionObserver]: Analyzing ICFG float12.c [2019-11-16 00:09:54,508 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:09:54,513 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:09:54,521 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:09:54,539 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:09:54,539 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:09:54,539 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:09:54,539 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:09:54,539 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:09:54,539 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:09:54,540 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:09:54,540 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:09:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-16 00:09:54,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-16 00:09:54,555 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:09:54,555 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-16 00:09:54,557 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:09:54,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:09:54,561 INFO L82 PathProgramCache]: Analyzing trace with hash 957381, now seen corresponding path program 1 times [2019-11-16 00:09:54,569 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:09:54,569 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235727513] [2019-11-16 00:09:54,569 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:09:54,569 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:09:54,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:09:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:09:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:09:54,646 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:09:54,647 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:09:54,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:09:54 BoogieIcfgContainer [2019-11-16 00:09:54,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:09:54,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:09:54,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:09:54,660 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:09:54,661 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:54" (3/4) ... [2019-11-16 00:09:54,664 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:09:54,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:09:54,666 INFO L168 Benchmark]: Toolchain (without parser) took 645.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -163.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:09:54,667 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. [2019-11-16 00:09:54,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:09:54,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.46 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. [2019-11-16 00:09:54,669 INFO L168 Benchmark]: Boogie Preprocessor took 14.39 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. [2019-11-16 00:09:54,669 INFO L168 Benchmark]: RCFGBuilder took 155.75 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:09:54,670 INFO L168 Benchmark]: TraceAbstraction took 164.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:09:54,670 INFO L168 Benchmark]: Witness Printer took 4.08 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. [2019-11-16 00:09:54,674 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 275.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.46 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. * Boogie Preprocessor took 14.39 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 155.75 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 164.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.08 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-cad4683 [2019-11-16 00:09:56,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:09:56,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:09:56,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:09:56,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:09:56,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:09:56,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:09:56,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:09:56,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:09:56,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:09:56,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:09:56,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:09:56,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:09:56,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:09:56,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:09:56,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:09:56,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:09:56,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:09:56,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:09:56,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:09:56,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:09:56,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:09:56,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:09:56,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:09:56,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:09:56,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:09:56,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:09:56,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:09:56,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:09:56,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:09:56,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:09:56,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:09:56,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:09:56,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:09:56,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:09:56,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:09:56,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:09:56,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:09:56,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:09:56,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:09:56,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:09:56,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:09:56,782 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:09:56,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:09:56,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:09:56,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:09:56,784 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:09:56,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:09:56,784 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:09:56,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:09:56,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:09:56,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:09:56,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:09:56,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:09:56,787 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:09:56,787 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:09:56,787 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:09:56,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:09:56,788 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:09:56,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:09:56,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:09:56,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:09:56,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:09:56,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:09:56,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:09:56,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:09:56,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:09:56,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:09:56,790 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:09:56,790 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:09:56,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:09:56,791 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:09:56,791 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_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/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 [2019-11-16 00:09:56,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:09:56,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:09:56,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:09:56,835 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:09:56,835 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:09:56,836 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-11-16 00:09:56,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/data/a0943ba6f/dba1d8be2d8f4617a63b9d488f929806/FLAG7ce2658ef [2019-11-16 00:09:57,302 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:09:57,302 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-11-16 00:09:57,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/data/a0943ba6f/dba1d8be2d8f4617a63b9d488f929806/FLAG7ce2658ef [2019-11-16 00:09:57,733 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/data/a0943ba6f/dba1d8be2d8f4617a63b9d488f929806 [2019-11-16 00:09:57,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:09:57,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:09:57,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:09:57,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:09:57,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:09:57,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:57" (1/1) ... [2019-11-16 00:09:57,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56018882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57, skipping insertion in model container [2019-11-16 00:09:57,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:57" (1/1) ... [2019-11-16 00:09:57,750 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:09:57,768 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:09:57,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:09:57,904 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:09:57,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:09:57,932 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:09:57,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57 WrapperNode [2019-11-16 00:09:57,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:09:57,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:09:57,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:09:57,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:09:57,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57" (1/1) ... [2019-11-16 00:09:57,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57" (1/1) ... [2019-11-16 00:09:58,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:09:58,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:09:58,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:09:58,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:09:58,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57" (1/1) ... [2019-11-16 00:09:58,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57" (1/1) ... [2019-11-16 00:09:58,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57" (1/1) ... [2019-11-16 00:09:58,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57" (1/1) ... [2019-11-16 00:09:58,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57" (1/1) ... [2019-11-16 00:09:58,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57" (1/1) ... [2019-11-16 00:09:58,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57" (1/1) ... [2019-11-16 00:09:58,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:09:58,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:09:58,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:09:58,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:09:58,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/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 [2019-11-16 00:09:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:09:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:09:58,273 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:09:58,273 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-16 00:09:58,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:58 BoogieIcfgContainer [2019-11-16 00:09:58,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:09:58,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:09:58,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:09:58,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:09:58,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:09:57" (1/3) ... [2019-11-16 00:09:58,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaa992e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:58, skipping insertion in model container [2019-11-16 00:09:58,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:57" (2/3) ... [2019-11-16 00:09:58,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaa992e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:58, skipping insertion in model container [2019-11-16 00:09:58,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:58" (3/3) ... [2019-11-16 00:09:58,281 INFO L109 eAbstractionObserver]: Analyzing ICFG float12.c [2019-11-16 00:09:58,288 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:09:58,293 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:09:58,302 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:09:58,322 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:09:58,322 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:09:58,322 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:09:58,322 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:09:58,323 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:09:58,323 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:09:58,323 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:09:58,323 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:09:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-16 00:09:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-16 00:09:58,341 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:09:58,342 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-16 00:09:58,343 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:09:58,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:09:58,347 INFO L82 PathProgramCache]: Analyzing trace with hash 957381, now seen corresponding path program 1 times [2019-11-16 00:09:58,354 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:09:58,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057103665] [2019-11-16 00:09:58,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/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 [2019-11-16 00:09:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:09:58,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-16 00:09:58,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:09:59,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:09:59,216 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:10:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:10:00,628 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057103665] [2019-11-16 00:10:00,628 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:10:00,628 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-16 00:10:00,629 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925380480] [2019-11-16 00:10:00,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-16 00:10:00,632 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:10:00,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-16 00:10:00,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:10:00,644 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 6 states. [2019-11-16 00:10:02,900 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2019-11-16 00:10:03,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:10:03,050 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2019-11-16 00:10:03,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-16 00:10:03,057 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-11-16 00:10:03,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:10:03,063 INFO L225 Difference]: With dead ends: 14 [2019-11-16 00:10:03,063 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:10:03,067 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:10:03,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:10:03,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:10:03,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:10:03,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:10:03,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-16 00:10:03,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:10:03,089 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:10:03,089 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-16 00:10:03,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:10:03,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:10:03,302 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:10:03,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-16 00:10:03,308 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-16 00:10:03,308 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-16 00:10:03,308 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-16 00:10:03,308 INFO L443 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-11-16 00:10:03,308 INFO L443 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. [2019-11-16 00:10:03,309 INFO L443 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-11-16 00:10:03,309 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 14) no Hoare annotation was computed. [2019-11-16 00:10:03,309 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-11-16 00:10:03,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:10:03 BoogieIcfgContainer [2019-11-16 00:10:03,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:10:03,312 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:10:03,312 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:10:03,312 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:10:03,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:58" (3/4) ... [2019-11-16 00:10:03,315 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:10:03,323 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-16 00:10:03,323 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-16 00:10:03,352 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0fc7eb03-d25c-44d0-8790-0c7a8cb0802f/bin/uautomizer/witness.graphml [2019-11-16 00:10:03,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:10:03,353 INFO L168 Benchmark]: Toolchain (without parser) took 5616.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:10:03,354 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:10:03,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.30 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 936.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:10:03,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -213.4 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:10:03,356 INFO L168 Benchmark]: Boogie Preprocessor took 33.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:10:03,356 INFO L168 Benchmark]: RCFGBuilder took 223.66 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: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:10:03,357 INFO L168 Benchmark]: TraceAbstraction took 5036.31 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:10:03,357 INFO L168 Benchmark]: Witness Printer took 40.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:10:03,361 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 195.30 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 936.3 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 83.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -213.4 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 223.66 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: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5036.31 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Witness Printer took 40.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 4.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 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, 2.2s 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...