./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/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_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/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 0.1.25-f470102 [2019-12-07 12:04:23,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:04:23,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:04:23,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:04:23,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:04:23,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:04:23,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:04:23,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:04:23,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:04:23,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:04:23,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:04:23,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:04:23,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:04:23,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:04:23,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:04:23,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:04:23,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:04:23,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:04:23,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:04:23,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:04:23,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:04:23,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:04:23,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:04:23,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:04:23,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:04:23,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:04:23,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:04:23,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:04:23,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:04:23,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:04:23,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:04:23,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:04:23,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:04:23,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:04:23,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:04:23,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:04:23,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:04:23,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:04:23,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:04:23,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:04:23,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:04:23,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 12:04:23,054 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:04:23,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:04:23,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:04:23,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:04:23,056 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:04:23,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:04:23,056 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:04:23,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:04:23,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:04:23,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:04:23,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:04:23,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:04:23,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:04:23,058 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:04:23,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:04:23,058 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:04:23,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:04:23,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:04:23,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:04:23,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:04:23,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:04:23,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:04:23,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:04:23,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:04:23,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:04:23,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:04:23,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:04:23,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:04:23,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:04:23,060 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_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/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 [2019-12-07 12:04:23,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:04:23,201 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:04:23,204 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:04:23,205 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:04:23,206 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:04:23,206 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-12-07 12:04:23,250 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/data/8cfb64c80/23735a48bb5f4bbca47b54ad8a2214de/FLAG6f099e770 [2019-12-07 12:04:23,695 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:04:23,695 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-12-07 12:04:23,699 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/data/8cfb64c80/23735a48bb5f4bbca47b54ad8a2214de/FLAG6f099e770 [2019-12-07 12:04:23,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/data/8cfb64c80/23735a48bb5f4bbca47b54ad8a2214de [2019-12-07 12:04:23,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:04:23,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:04:23,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:04:23,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:04:23,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:04:23,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:04:23" (1/1) ... [2019-12-07 12:04:23,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2ca34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23, skipping insertion in model container [2019-12-07 12:04:23,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:04:23" (1/1) ... [2019-12-07 12:04:23,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:04:23,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:04:23,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:04:23,826 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:04:23,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:04:23,883 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:04:23,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23 WrapperNode [2019-12-07 12:04:23,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:04:23,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:04:23,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:04:23,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:04:23,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23" (1/1) ... [2019-12-07 12:04:23,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23" (1/1) ... [2019-12-07 12:04:23,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:04:23,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:04:23,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:04:23,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:04:23,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23" (1/1) ... [2019-12-07 12:04:23,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23" (1/1) ... [2019-12-07 12:04:23,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23" (1/1) ... [2019-12-07 12:04:23,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23" (1/1) ... [2019-12-07 12:04:23,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23" (1/1) ... [2019-12-07 12:04:23,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23" (1/1) ... [2019-12-07 12:04:23,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23" (1/1) ... [2019-12-07 12:04:23,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:04:23,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:04:23,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:04:23,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:04:23,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/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 [2019-12-07 12:04:23,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:04:23,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:04:24,038 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:04:24,038 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 12:04:24,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:04:24 BoogieIcfgContainer [2019-12-07 12:04:24,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:04:24,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:04:24,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:04:24,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:04:24,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:04:23" (1/3) ... [2019-12-07 12:04:24,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb67e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:04:24, skipping insertion in model container [2019-12-07 12:04:24,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:23" (2/3) ... [2019-12-07 12:04:24,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb67e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:04:24, skipping insertion in model container [2019-12-07 12:04:24,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:04:24" (3/3) ... [2019-12-07 12:04:24,044 INFO L109 eAbstractionObserver]: Analyzing ICFG float12.c [2019-12-07 12:04:24,050 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:04:24,054 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:04:24,061 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:04:24,075 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:04:24,075 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:04:24,075 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:04:24,075 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:04:24,075 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:04:24,075 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:04:24,075 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:04:24,075 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:04:24,084 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-12-07 12:04:24,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 12:04:24,087 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:04:24,088 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 12:04:24,088 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:04:24,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:04:24,091 INFO L82 PathProgramCache]: Analyzing trace with hash 957381, now seen corresponding path program 1 times [2019-12-07 12:04:24,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:04:24,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993658471] [2019-12-07 12:04:24,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:04:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:04:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:04:24,160 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:04:24,161 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:04:24,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:04:24 BoogieIcfgContainer [2019-12-07 12:04:24,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:04:24,172 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:04:24,172 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:04:24,172 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:04:24,172 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:04:24" (3/4) ... [2019-12-07 12:04:24,174 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:04:24,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:04:24,176 INFO L168 Benchmark]: Toolchain (without parser) took 464.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -159.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:04:24,176 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:04:24,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:24,177 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.82 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. [2019-12-07 12:04:24,178 INFO L168 Benchmark]: Boogie Preprocessor took 13.75 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. [2019-12-07 12:04:24,178 INFO L168 Benchmark]: RCFGBuilder took 114.71 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:24,179 INFO L168 Benchmark]: TraceAbstraction took 131.64 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:24,179 INFO L168 Benchmark]: Witness Printer took 2.82 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. [2019-12-07 12:04:24,181 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.82 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 13.75 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 114.71 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 131.64 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 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: 0.0s, 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 0.1.25-f470102 [2019-12-07 12:04:25,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:04:25,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:04:25,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:04:25,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:04:25,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:04:25,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:04:25,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:04:25,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:04:25,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:04:25,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:04:25,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:04:25,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:04:25,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:04:25,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:04:25,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:04:25,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:04:25,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:04:25,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:04:25,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:04:25,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:04:25,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:04:25,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:04:25,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:04:25,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:04:25,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:04:25,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:04:25,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:04:25,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:04:25,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:04:25,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:04:25,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:04:25,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:04:25,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:04:25,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:04:25,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:04:25,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:04:25,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:04:25,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:04:25,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:04:25,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:04:25,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 12:04:25,574 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:04:25,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:04:25,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:04:25,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:04:25,575 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:04:25,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:04:25,576 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:04:25,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:04:25,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:04:25,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:04:25,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:04:25,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:04:25,577 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:04:25,577 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:04:25,577 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:04:25,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:04:25,577 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:04:25,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:04:25,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:04:25,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:04:25,578 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:04:25,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:04:25,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:04:25,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:04:25,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:04:25,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:04:25,579 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 12:04:25,579 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:04:25,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:04:25,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:04:25,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:04:25,579 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_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/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 [2019-12-07 12:04:25,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:04:25,757 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:04:25,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:04:25,761 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:04:25,762 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:04:25,762 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-12-07 12:04:25,805 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/data/d3a0741ac/e8ef43855f064057b7228e0cf563a0ab/FLAGb0170f189 [2019-12-07 12:04:26,140 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:04:26,140 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-12-07 12:04:26,144 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/data/d3a0741ac/e8ef43855f064057b7228e0cf563a0ab/FLAGb0170f189 [2019-12-07 12:04:26,569 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/data/d3a0741ac/e8ef43855f064057b7228e0cf563a0ab [2019-12-07 12:04:26,572 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:04:26,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:04:26,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:04:26,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:04:26,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:04:26,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:04:26" (1/1) ... [2019-12-07 12:04:26,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41944eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26, skipping insertion in model container [2019-12-07 12:04:26,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:04:26" (1/1) ... [2019-12-07 12:04:26,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:04:26,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:04:26,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:04:26,694 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:04:26,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:04:26,712 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:04:26,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26 WrapperNode [2019-12-07 12:04:26,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:04:26,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:04:26,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:04:26,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:04:26,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26" (1/1) ... [2019-12-07 12:04:26,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26" (1/1) ... [2019-12-07 12:04:26,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:04:26,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:04:26,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:04:26,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:04:26,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26" (1/1) ... [2019-12-07 12:04:26,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26" (1/1) ... [2019-12-07 12:04:26,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26" (1/1) ... [2019-12-07 12:04:26,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26" (1/1) ... [2019-12-07 12:04:26,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26" (1/1) ... [2019-12-07 12:04:26,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26" (1/1) ... [2019-12-07 12:04:26,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26" (1/1) ... [2019-12-07 12:04:26,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:04:26,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:04:26,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:04:26,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:04:26,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/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 [2019-12-07 12:04:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:04:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:04:26,961 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:04:26,962 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 12:04:26,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:04:26 BoogieIcfgContainer [2019-12-07 12:04:26,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:04:26,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:04:26,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:04:26,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:04:26,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:04:26" (1/3) ... [2019-12-07 12:04:26,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b294116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:04:26, skipping insertion in model container [2019-12-07 12:04:26,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:26" (2/3) ... [2019-12-07 12:04:26,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b294116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:04:26, skipping insertion in model container [2019-12-07 12:04:26,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:04:26" (3/3) ... [2019-12-07 12:04:26,967 INFO L109 eAbstractionObserver]: Analyzing ICFG float12.c [2019-12-07 12:04:26,974 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:04:26,978 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:04:26,985 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:04:27,000 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:04:27,000 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:04:27,000 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:04:27,001 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:04:27,001 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:04:27,001 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:04:27,001 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:04:27,001 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:04:27,010 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 12:04:27,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 12:04:27,013 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:04:27,014 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 12:04:27,014 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:04:27,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:04:27,017 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2019-12-07 12:04:27,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:04:27,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767786390] [2019-12-07 12:04:27,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/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 [2019-12-07 12:04:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:04:27,065 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:04:27,068 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:04:27,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:04:27,715 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:04:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:04:29,090 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767786390] [2019-12-07 12:04:29,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:04:29,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 12:04:29,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659489158] [2019-12-07 12:04:29,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:04:29,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:04:29,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:04:29,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:04:29,105 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2019-12-07 12:04:31,170 WARN L192 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2019-12-07 12:04:31,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:04:31,358 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-12-07 12:04:31,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:04:31,364 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2019-12-07 12:04:31,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:04:31,369 INFO L225 Difference]: With dead ends: 15 [2019-12-07 12:04:31,369 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:04:31,371 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:04:31,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:04:31,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:04:31,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:04:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:04:31,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-12-07 12:04:31,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:04:31,388 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:04:31,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:04:31,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:04:31,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:04:31,589 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:04:31,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 12:04:31,603 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 12:04:31,603 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 12:04:31,604 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 12:04:31,604 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 12:04:31,604 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-12-07 12:04:31,605 INFO L246 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2019-12-07 12:04:31,605 INFO L246 CegarLoopResult]: For program point L12(lines 12 13) no Hoare annotation was computed. [2019-12-07 12:04:31,605 INFO L246 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-12-07 12:04:31,606 INFO L246 CegarLoopResult]: For program point L4(lines 4 14) no Hoare annotation was computed. [2019-12-07 12:04:31,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:04:31 BoogieIcfgContainer [2019-12-07 12:04:31,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:04:31,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:04:31,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:04:31,618 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:04:31,619 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:04:26" (3/4) ... [2019-12-07 12:04:31,625 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:04:31,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 12:04:31,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 12:04:31,638 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 12:04:31,664 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_df66b663-c8ef-43b7-b418-e2fe45cbfd5b/bin/uautomizer/witness.graphml [2019-12-07 12:04:31,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:04:31,665 INFO L168 Benchmark]: Toolchain (without parser) took 5092.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -103.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:31,665 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:04:31,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.27 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:31,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.96 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:04:31,666 INFO L168 Benchmark]: Boogie Preprocessor took 46.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:31,667 INFO L168 Benchmark]: RCFGBuilder took 180.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:31,667 INFO L168 Benchmark]: TraceAbstraction took 4653.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:31,667 INFO L168 Benchmark]: Witness Printer took 46.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:04:31,669 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.27 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.96 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 180.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4653.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. * Witness Printer took 46.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 9 locations, 1 error locations. Result: SAFE, OverallTime: 4.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 2.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 2 QuantifiedInterpolants, 156 SizeOfPredicates, 6 NumberOfNonLiveVariables, 9 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...