./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ............................................................................................................................................................................................................................... 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_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ..................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:19:32,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:19:32,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:19:32,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:19:32,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:19:32,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:19:32,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:19:32,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:19:32,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:19:32,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:19:32,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:19:32,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:19:32,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:19:32,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:19:32,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:19:32,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:19:32,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:19:32,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:19:32,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:19:32,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:19:32,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:19:32,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:19:32,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:19:32,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:19:32,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:19:32,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:19:32,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:19:32,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:19:32,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:19:32,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:19:32,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:19:32,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:19:32,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:19:32,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:19:32,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:19:32,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:19:32,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:19:32,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:19:32,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:19:32,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:19:32,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:19:32,936 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:19:32,948 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:19:32,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:19:32,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:19:32,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:19:32,950 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:19:32,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:19:32,950 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:19:32,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:19:32,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:19:32,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:19:32,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:19:32,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:19:32,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:19:32,951 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:19:32,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:19:32,952 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:19:32,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:19:32,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:19:32,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:19:32,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:19:32,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:19:32,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:19:32,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:19:32,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:19:32,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:19:32,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:19:32,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:19:32,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:19:32,954 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_7c085538-d025-4ecb-9824-46c7e6d5f734/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2019-11-20 10:19:33,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:19:33,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:19:33,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:19:33,111 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:19:33,113 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:19:33,114 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-11-20 10:19:33,167 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/data/a35396a19/e21d3b13dedd4cffbc5ab9c288a64b84/FLAGd3fe7edba [2019-11-20 10:19:33,502 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:19:33,502 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-11-20 10:19:33,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/data/a35396a19/e21d3b13dedd4cffbc5ab9c288a64b84/FLAGd3fe7edba [2019-11-20 10:19:33,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/data/a35396a19/e21d3b13dedd4cffbc5ab9c288a64b84 [2019-11-20 10:19:33,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:19:33,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:19:33,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:19:33,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:19:33,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:19:33,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:19:33" (1/1) ... [2019-11-20 10:19:33,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9cc18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:33, skipping insertion in model container [2019-11-20 10:19:33,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:19:33" (1/1) ... [2019-11-20 10:19:33,933 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:19:33,946 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:19:34,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:19:34,148 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:19:34,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:19:34,257 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:19:34,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34 WrapperNode [2019-11-20 10:19:34,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:19:34,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:19:34,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:19:34,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:19:34,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34" (1/1) ... [2019-11-20 10:19:34,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34" (1/1) ... [2019-11-20 10:19:34,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:19:34,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:19:34,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:19:34,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:19:34,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34" (1/1) ... [2019-11-20 10:19:34,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34" (1/1) ... [2019-11-20 10:19:34,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34" (1/1) ... [2019-11-20 10:19:34,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34" (1/1) ... [2019-11-20 10:19:34,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34" (1/1) ... [2019-11-20 10:19:34,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34" (1/1) ... [2019-11-20 10:19:34,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34" (1/1) ... [2019-11-20 10:19:34,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:19:34,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:19:34,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:19:34,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:19:34,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:19:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:19:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:19:34,501 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:19:34,502 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 10:19:34,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:34 BoogieIcfgContainer [2019-11-20 10:19:34,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:19:34,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:19:34,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:19:34,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:19:34,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:19:33" (1/3) ... [2019-11-20 10:19:34,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24974a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:19:34, skipping insertion in model container [2019-11-20 10:19:34,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:34" (2/3) ... [2019-11-20 10:19:34,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24974a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:19:34, skipping insertion in model container [2019-11-20 10:19:34,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:34" (3/3) ... [2019-11-20 10:19:34,510 INFO L109 eAbstractionObserver]: Analyzing ICFG float3.c [2019-11-20 10:19:34,520 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:19:34,525 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:19:34,536 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:19:34,564 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:19:34,564 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:19:34,564 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:19:34,564 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:19:34,564 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:19:34,565 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:19:34,565 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:19:34,565 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:19:34,579 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-20 10:19:34,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 10:19:34,584 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:19:34,585 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:19:34,586 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:19:34,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:34,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2019-11-20 10:19:34,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:19:34,599 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919889746] [2019-11-20 10:19:34,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:19:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:19:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:19:34,714 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:19:34,715 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:19:34,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:19:34 BoogieIcfgContainer [2019-11-20 10:19:34,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:19:34,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:19:34,733 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:19:34,733 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:19:34,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:34" (3/4) ... [2019-11-20 10:19:34,736 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:19:34,736 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:19:34,738 INFO L168 Benchmark]: Toolchain (without parser) took 822.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:19:34,739 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:19:34,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -209.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:34,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:19:34,741 INFO L168 Benchmark]: Boogie Preprocessor took 16.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:19:34,741 INFO L168 Benchmark]: RCFGBuilder took 195.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:34,742 INFO L168 Benchmark]: TraceAbstraction took 228.31 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:34,742 INFO L168 Benchmark]: Witness Printer took 3.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:19:34,745 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 342.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -209.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 195.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 228.31 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.97 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: 24]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 20. Possible FailurePath: [L4] double d = 0.0; VAL [d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [d=0] [L8] d = 1.0 VAL [d=1] [L20] d += (x == 2) [L22] d += (x > 3) [L24] COND TRUE !(d == 2.0) [L24] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 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=11occurred 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, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 10:19:36,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:19:36,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:19:36,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:19:36,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:19:36,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:19:36,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:19:36,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:19:36,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:19:36,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:19:36,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:19:36,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:19:36,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:19:36,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:19:36,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:19:36,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:19:36,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:19:36,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:19:36,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:19:36,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:19:36,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:19:36,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:19:36,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:19:36,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:19:36,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:19:36,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:19:36,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:19:36,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:19:36,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:19:36,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:19:36,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:19:36,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:19:36,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:19:36,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:19:36,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:19:36,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:19:36,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:19:36,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:19:36,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:19:36,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:19:36,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:19:36,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 10:19:36,669 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:19:36,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:19:36,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:19:36,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:19:36,671 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:19:36,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:19:36,671 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:19:36,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:19:36,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:19:36,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:19:36,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:19:36,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:19:36,673 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 10:19:36,673 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 10:19:36,673 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:19:36,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:19:36,673 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:19:36,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:19:36,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:19:36,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:19:36,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:19:36,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:19:36,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:19:36,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:19:36,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:19:36,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:19:36,676 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 10:19:36,676 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 10:19:36,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:19:36,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 10:19:36,676 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_7c085538-d025-4ecb-9824-46c7e6d5f734/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2019-11-20 10:19:36,987 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:19:37,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:19:37,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:19:37,011 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:19:37,012 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:19:37,013 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-11-20 10:19:37,073 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/data/7e3965dda/43435418ac5745ac94d35eadf5e9c824/FLAGb43b02a2c [2019-11-20 10:19:37,467 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:19:37,468 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-11-20 10:19:37,473 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/data/7e3965dda/43435418ac5745ac94d35eadf5e9c824/FLAGb43b02a2c [2019-11-20 10:19:37,865 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/data/7e3965dda/43435418ac5745ac94d35eadf5e9c824 [2019-11-20 10:19:37,867 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:19:37,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:19:37,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:19:37,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:19:37,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:19:37,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:19:37" (1/1) ... [2019-11-20 10:19:37,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47428a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:37, skipping insertion in model container [2019-11-20 10:19:37,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:19:37" (1/1) ... [2019-11-20 10:19:37,883 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:19:37,899 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:19:38,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:19:38,099 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:19:38,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:19:38,131 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:19:38,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38 WrapperNode [2019-11-20 10:19:38,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:19:38,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:19:38,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:19:38,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:19:38,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38" (1/1) ... [2019-11-20 10:19:38,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38" (1/1) ... [2019-11-20 10:19:38,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:19:38,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:19:38,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:19:38,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:19:38,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38" (1/1) ... [2019-11-20 10:19:38,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38" (1/1) ... [2019-11-20 10:19:38,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38" (1/1) ... [2019-11-20 10:19:38,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38" (1/1) ... [2019-11-20 10:19:38,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38" (1/1) ... [2019-11-20 10:19:38,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38" (1/1) ... [2019-11-20 10:19:38,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38" (1/1) ... [2019-11-20 10:19:38,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:19:38,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:19:38,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:19:38,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:19:38,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:19:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:19:38,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:19:39,096 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:19:39,096 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 10:19:39,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:39 BoogieIcfgContainer [2019-11-20 10:19:39,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:19:39,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:19:39,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:19:39,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:19:39,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:19:37" (1/3) ... [2019-11-20 10:19:39,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e68e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:19:39, skipping insertion in model container [2019-11-20 10:19:39,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:38" (2/3) ... [2019-11-20 10:19:39,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e68e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:19:39, skipping insertion in model container [2019-11-20 10:19:39,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:39" (3/3) ... [2019-11-20 10:19:39,105 INFO L109 eAbstractionObserver]: Analyzing ICFG float3.c [2019-11-20 10:19:39,114 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:19:39,118 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:19:39,129 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:19:39,156 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:19:39,157 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:19:39,157 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:19:39,157 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:19:39,157 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:19:39,157 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:19:39,157 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:19:39,157 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:19:39,170 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-20 10:19:39,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 10:19:39,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:19:39,176 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:19:39,176 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:19:39,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:39,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2019-11-20 10:19:39,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:19:39,191 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144822422] [2019-11-20 10:19:39,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 10:19:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:19:39,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:19:39,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:19:39,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:19:39,490 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:20:04,904 WARN L191 SmtUtils]: Spent 22.81 s on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2019-11-20 10:20:05,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:20:05,438 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144822422] [2019-11-20 10:20:05,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:20:05,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-20 10:20:05,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569419377] [2019-11-20 10:20:05,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 10:20:05,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:20:05,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 10:20:05,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-20 10:20:05,461 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 7 states. [2019-11-20 10:20:13,621 WARN L191 SmtUtils]: Spent 5.12 s on a formula simplification. DAG size of input: 33 DAG size of output: 20 [2019-11-20 10:20:15,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:20:15,102 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-11-20 10:20:15,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 10:20:15,104 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-11-20 10:20:15,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:20:15,110 INFO L225 Difference]: With dead ends: 20 [2019-11-20 10:20:15,110 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 10:20:15,113 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 33.9s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-20 10:20:15,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 10:20:15,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 10:20:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 10:20:15,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 10:20:15,131 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-20 10:20:15,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:20:15,132 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:20:15,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 10:20:15,132 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:20:15,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 10:20:15,333 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 10:20:15,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 10:20:15,340 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 10:20:15,341 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 10:20:15,341 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 10:20:15,341 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 10:20:15,341 INFO L444 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-20 10:20:15,342 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2019-11-20 10:20:15,342 INFO L444 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-11-20 10:20:15,342 INFO L444 ceAbstractionStarter]: For program point L15(lines 15 16) no Hoare annotation was computed. [2019-11-20 10:20:15,342 INFO L444 ceAbstractionStarter]: For program point L15-2(lines 15 16) no Hoare annotation was computed. [2019-11-20 10:20:15,342 INFO L444 ceAbstractionStarter]: For program point L11(lines 11 25) no Hoare annotation was computed. [2019-11-20 10:20:15,343 INFO L444 ceAbstractionStarter]: For program point L6(lines 6 9) no Hoare annotation was computed. [2019-11-20 10:20:15,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:20:15 BoogieIcfgContainer [2019-11-20 10:20:15,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:20:15,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:20:15,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:20:15,347 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:20:15,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:39" (3/4) ... [2019-11-20 10:20:15,351 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 10:20:15,361 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 10:20:15,362 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 10:20:15,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7c085538-d025-4ecb-9824-46c7e6d5f734/bin/uautomizer/witness.graphml [2019-11-20 10:20:15,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:20:15,400 INFO L168 Benchmark]: Toolchain (without parser) took 37532.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -130.8 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-11-20 10:20:15,401 INFO L168 Benchmark]: CDTParser took 0.33 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. [2019-11-20 10:20:15,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.58 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:20:15,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -217.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:20:15,403 INFO L168 Benchmark]: Boogie Preprocessor took 31.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:20:15,403 INFO L168 Benchmark]: RCFGBuilder took 841.64 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: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:20:15,404 INFO L168 Benchmark]: TraceAbstraction took 36247.56 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:20:15,404 INFO L168 Benchmark]: Witness Printer took 52.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:20:15,416 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 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 263.58 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 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 90.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -217.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 841.64 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: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 36247.56 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. * Witness Printer took 52.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: 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, 11 locations, 1 error locations. Result: SAFE, OverallTime: 36.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 19 SDslu, 13 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 33.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0.1s SatisfiabilityAnalysisTime, 26.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 900 SizeOfPredicates, 2 NumberOfNonLiveVariables, 10 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...