./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/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 e03384737e8763104139cfd338bec2bd1e3e90b2 ........................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/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 e03384737e8763104139cfd338bec2bd1e3e90b2 ................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:08,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:08,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:08,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:08,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:08,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:08,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:08,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:08,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:08,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:08,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:08,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:08,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:08,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:08,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:08,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:08,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:08,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:08,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:08,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:08,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:08,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:08,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:08,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:08,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:08,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:08,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:08,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:08,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:08,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:08,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:08,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:08,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:08,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:08,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:08,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:08,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:08,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:08,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:08,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:08,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:08,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:58:08,139 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:08,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:08,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:08,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:08,141 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:08,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:08,141 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:08,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:08,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:08,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:08,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:08,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:08,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:08,142 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:08,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:08,143 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:08,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:08,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:08,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:08,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:08,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:08,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:08,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:08,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:08,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:08,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:08,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:08,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:08,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/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 -> e03384737e8763104139cfd338bec2bd1e3e90b2 [2019-10-22 08:58:08,170 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:08,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:08,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:08,184 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:08,185 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:08,185 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float5.c [2019-10-22 08:58:08,233 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/data/8f1e12470/5c62d36ebe6947ca8b29cf6e6e2a36d3/FLAG746bae21a [2019-10-22 08:58:08,626 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:08,627 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/sv-benchmarks/c/floats-cbmc-regression/float5.c [2019-10-22 08:58:08,631 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/data/8f1e12470/5c62d36ebe6947ca8b29cf6e6e2a36d3/FLAG746bae21a [2019-10-22 08:58:09,018 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/data/8f1e12470/5c62d36ebe6947ca8b29cf6e6e2a36d3 [2019-10-22 08:58:09,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:09,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:09,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:09,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:09,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:09,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:09" (1/1) ... [2019-10-22 08:58:09,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529cbbf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09, skipping insertion in model container [2019-10-22 08:58:09,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:09" (1/1) ... [2019-10-22 08:58:09,035 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:09,048 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:09,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:09,185 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:09,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:09,272 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:09,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09 WrapperNode [2019-10-22 08:58:09,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:09,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:09,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:09,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:09,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09" (1/1) ... [2019-10-22 08:58:09,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09" (1/1) ... [2019-10-22 08:58:09,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:09,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:09,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:09,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:09,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09" (1/1) ... [2019-10-22 08:58:09,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09" (1/1) ... [2019-10-22 08:58:09,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09" (1/1) ... [2019-10-22 08:58:09,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09" (1/1) ... [2019-10-22 08:58:09,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09" (1/1) ... [2019-10-22 08:58:09,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09" (1/1) ... [2019-10-22 08:58:09,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09" (1/1) ... [2019-10-22 08:58:09,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:09,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:09,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:09,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:09,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:09,474 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:09,474 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:58:09,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:09 BoogieIcfgContainer [2019-10-22 08:58:09,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:09,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:09,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:09,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:09,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:09" (1/3) ... [2019-10-22 08:58:09,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a5e4b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:09, skipping insertion in model container [2019-10-22 08:58:09,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:09" (2/3) ... [2019-10-22 08:58:09,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a5e4b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:09, skipping insertion in model container [2019-10-22 08:58:09,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:09" (3/3) ... [2019-10-22 08:58:09,482 INFO L109 eAbstractionObserver]: Analyzing ICFG float5.c [2019-10-22 08:58:09,490 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:09,495 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:58:09,503 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:58:09,526 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:09,526 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:09,526 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:09,526 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:09,526 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:09,526 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:09,526 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:09,527 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-10-22 08:58:09,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:58:09,543 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:09,543 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:58:09,545 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:09,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:09,549 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 08:58:09,557 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:09,557 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706439357] [2019-10-22 08:58:09,558 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:09,558 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:09,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:09,638 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:09,639 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:58:09,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:09 BoogieIcfgContainer [2019-10-22 08:58:09,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:09,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:09,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:09,650 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:09,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:09" (3/4) ... [2019-10-22 08:58:09,653 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:58:09,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:09,655 INFO L168 Benchmark]: Toolchain (without parser) took 633.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -135.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:09,655 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:09,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:09,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.22 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. [2019-10-22 08:58:09,657 INFO L168 Benchmark]: Boogie Preprocessor took 11.50 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. [2019-10-22 08:58:09,657 INFO L168 Benchmark]: RCFGBuilder took 166.11 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:09,658 INFO L168 Benchmark]: TraceAbstraction took 173.29 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:09,658 INFO L168 Benchmark]: Witness Printer took 3.50 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. [2019-10-22 08:58:09,661 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 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 250.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.22 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. * Boogie Preprocessor took 11.50 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. * RCFGBuilder took 166.11 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 173.29 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.50 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: - UnprovableResult [Line: 12]: 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 8, overapproximation of someBinaryArithmeticFLOAToperation at line 10. Possible FailurePath: [L6] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L6] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L9] b=a [L10] a/=2 [L11] a*=2 [L12] COND TRUE !(a==b) [L12] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:11,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:11,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:11,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:11,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:11,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:11,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:11,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:11,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:11,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:11,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:11,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:11,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:11,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:11,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:11,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:11,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:11,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:11,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:11,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:11,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:11,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:11,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:11,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:11,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:11,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:11,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:11,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:11,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:11,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:11,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:11,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:11,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:11,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:11,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:11,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:11,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:11,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:11,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:11,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:11,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:11,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:58:11,658 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:11,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:11,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:11,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:11,660 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:11,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:11,660 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:11,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:11,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:11,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:11,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:11,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:11,661 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:58:11,661 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:58:11,661 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:11,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:11,661 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:11,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:11,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:11,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:11,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:11,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:11,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:11,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:11,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:11,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:11,673 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:58:11,673 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:58:11,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:11,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:58:11,674 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/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 -> e03384737e8763104139cfd338bec2bd1e3e90b2 [2019-10-22 08:58:11,713 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:11,725 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:11,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:11,732 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:11,732 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:11,733 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float5.c [2019-10-22 08:58:11,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/data/9d687fe44/cd18135e124d4636a47d686cfa3d7717/FLAGe317eae06 [2019-10-22 08:58:12,165 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:12,165 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/sv-benchmarks/c/floats-cbmc-regression/float5.c [2019-10-22 08:58:12,171 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/data/9d687fe44/cd18135e124d4636a47d686cfa3d7717/FLAGe317eae06 [2019-10-22 08:58:12,183 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/data/9d687fe44/cd18135e124d4636a47d686cfa3d7717 [2019-10-22 08:58:12,186 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:12,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:12,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:12,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:12,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:12,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:12" (1/1) ... [2019-10-22 08:58:12,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e3f783f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12, skipping insertion in model container [2019-10-22 08:58:12,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:12" (1/1) ... [2019-10-22 08:58:12,201 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:12,214 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:12,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:12,363 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:12,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:12,395 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:12,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12 WrapperNode [2019-10-22 08:58:12,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:12,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:12,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:12,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:12,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12" (1/1) ... [2019-10-22 08:58:12,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12" (1/1) ... [2019-10-22 08:58:12,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:12,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:12,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:12,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:12,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12" (1/1) ... [2019-10-22 08:58:12,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12" (1/1) ... [2019-10-22 08:58:12,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12" (1/1) ... [2019-10-22 08:58:12,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12" (1/1) ... [2019-10-22 08:58:12,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12" (1/1) ... [2019-10-22 08:58:12,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12" (1/1) ... [2019-10-22 08:58:12,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12" (1/1) ... [2019-10-22 08:58:12,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:12,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:12,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:12,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:12,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:12,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:13,021 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:13,021 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:58:13,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:13 BoogieIcfgContainer [2019-10-22 08:58:13,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:13,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:13,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:13,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:13,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:12" (1/3) ... [2019-10-22 08:58:13,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7c93d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:13, skipping insertion in model container [2019-10-22 08:58:13,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:12" (2/3) ... [2019-10-22 08:58:13,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7c93d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:13, skipping insertion in model container [2019-10-22 08:58:13,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:13" (3/3) ... [2019-10-22 08:58:13,027 INFO L109 eAbstractionObserver]: Analyzing ICFG float5.c [2019-10-22 08:58:13,035 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:13,041 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:58:13,050 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:58:13,071 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:13,071 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:13,072 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:13,072 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:13,072 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:13,072 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:13,072 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:13,072 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:13,084 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-10-22 08:58:13,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:58:13,089 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:13,090 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:58:13,092 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:13,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:13,095 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 08:58:13,102 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:58:13,103 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223608790] [2019-10-22 08:58:13,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-10-22 08:58:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:13,173 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:13,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:18,395 WARN L191 SmtUtils]: Spent 4.83 s on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2019-10-22 08:58:18,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:18,896 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:58:19,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:19,278 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223608790] [2019-10-22 08:58:19,278 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:19,278 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 08:58:19,279 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181397986] [2019-10-22 08:58:19,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:19,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:58:19,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:19,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:19,301 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2019-10-22 08:58:20,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:20,136 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-10-22 08:58:20,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:20,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 08:58:20,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:20,155 INFO L225 Difference]: With dead ends: 10 [2019-10-22 08:58:20,155 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:58:20,157 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:58:20,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:58:20,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:58:20,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:58:20,180 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-10-22 08:58:20,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:20,181 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:20,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:20,181 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:20,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:58:20,382 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:58:20,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:58:20,390 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:58:20,390 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:58:20,391 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:58:20,391 INFO L443 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2019-10-22 08:58:20,391 INFO L443 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2019-10-22 08:58:20,391 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-10-22 08:58:20,391 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 13) no Hoare annotation was computed. [2019-10-22 08:58:20,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:20 BoogieIcfgContainer [2019-10-22 08:58:20,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:20,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:20,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:20,396 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:20,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:13" (3/4) ... [2019-10-22 08:58:20,399 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:58:20,409 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:58:20,410 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:58:20,456 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fdf63626-a045-4056-a1df-f4edc818ea6a/bin/uautomizer/witness.graphml [2019-10-22 08:58:20,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:20,457 INFO L168 Benchmark]: Toolchain (without parser) took 8270.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,458 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:20,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.81 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 934.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 934.9 MB in the beginning and 1.2 GB in the end (delta: -225.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,459 INFO L168 Benchmark]: Boogie Preprocessor took 16.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:20,460 INFO L168 Benchmark]: RCFGBuilder took 526.30 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,460 INFO L168 Benchmark]: TraceAbstraction took 7372.42 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,461 INFO L168 Benchmark]: Witness Printer took 60.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,464 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 207.81 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 934.9 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 82.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 934.9 MB in the beginning and 1.2 GB in the end (delta: -225.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.17 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 526.30 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7372.42 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Witness Printer took 60.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: SAFE, OverallTime: 7.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 2 NumberOfNonLiveVariables, 7 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...