./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cf66c963cee9d423d7bbfded96bc288d1ae256e ................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cf66c963cee9d423d7bbfded96bc288d1ae256e ....................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:15:14,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:15:14,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:15:14,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:15:14,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:15:14,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:15:14,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:15:14,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:15:14,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:15:14,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:15:14,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:15:14,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:15:14,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:15:14,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:15:14,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:15:14,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:15:14,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:15:14,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:15:14,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:15:14,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:15:14,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:15:14,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:15:14,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:15:14,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:15:14,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:15:14,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:15:14,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:15:14,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:15:14,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:15:14,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:15:14,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:15:14,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:15:14,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:15:14,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:15:14,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:15:14,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:15:14,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:15:14,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:15:14,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:15:14,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:15:14,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:15:14,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:15:14,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:15:14,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:15:14,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:15:14,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:15:14,327 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:15:14,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:15:14,327 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:15:14,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:15:14,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:15:14,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:15:14,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:15:14,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:15:14,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:15:14,329 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:15:14,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:15:14,329 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:15:14,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:15:14,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:15:14,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:15:14,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:15:14,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:15:14,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:15:14,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:15:14,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:15:14,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:15:14,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:15:14,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:15:14,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:15:14,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:15:14,333 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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(reach_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 -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-10-20 00:15:14,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:15:14,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:15:14,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:15:14,553 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:15:14,554 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:15:14,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-10-20 00:15:14,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4da8e469/1180a2d1aecb468e86e3a4eee2bec181/FLAG956e45ed6 [2020-10-20 00:15:15,068 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:15:15,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-10-20 00:15:15,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4da8e469/1180a2d1aecb468e86e3a4eee2bec181/FLAG956e45ed6 [2020-10-20 00:15:15,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4da8e469/1180a2d1aecb468e86e3a4eee2bec181 [2020-10-20 00:15:15,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:15:15,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:15:15,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:15,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:15:15,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:15:15,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:15" (1/1) ... [2020-10-20 00:15:15,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf4b66a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15, skipping insertion in model container [2020-10-20 00:15:15,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:15" (1/1) ... [2020-10-20 00:15:15,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:15:15,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:15:15,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:15,761 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:15:15,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:15,794 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:15:15,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15 WrapperNode [2020-10-20 00:15:15,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:15,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:15,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:15:15,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:15:15,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15" (1/1) ... [2020-10-20 00:15:15,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15" (1/1) ... [2020-10-20 00:15:15,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:15,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:15:15,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:15:15,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:15:15,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15" (1/1) ... [2020-10-20 00:15:15,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15" (1/1) ... [2020-10-20 00:15:15,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15" (1/1) ... [2020-10-20 00:15:15,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15" (1/1) ... [2020-10-20 00:15:15,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15" (1/1) ... [2020-10-20 00:15:15,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15" (1/1) ... [2020-10-20 00:15:15,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15" (1/1) ... [2020-10-20 00:15:15,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:15:15,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:15:15,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:15:15,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:15:15,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 00:15:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:15:15,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:15:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:15:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:15:16,107 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:15:16,107 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 00:15:16,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:16 BoogieIcfgContainer [2020-10-20 00:15:16,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:15:16,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:15:16,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:15:16,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:15:16,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:15:15" (1/3) ... [2020-10-20 00:15:16,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f97b659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:16, skipping insertion in model container [2020-10-20 00:15:16,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:15" (2/3) ... [2020-10-20 00:15:16,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f97b659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:16, skipping insertion in model container [2020-10-20 00:15:16,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:16" (3/3) ... [2020-10-20 00:15:16,119 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-10-20 00:15:16,132 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:15:16,140 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:15:16,156 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:15:16,190 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:15:16,191 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:15:16,191 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:15:16,192 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:15:16,192 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:15:16,192 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:15:16,193 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:15:16,193 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:15:16,215 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-10-20 00:15:16,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:15:16,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:15:16,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:15:16,225 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:15:16,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:15:16,234 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-20 00:15:16,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:15:16,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66033407] [2020-10-20 00:15:16,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:15:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:15:16,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:15:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:15:16,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:15:16,407 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:15:16,408 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:15:16,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:15:16,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:15:16 BoogieIcfgContainer [2020-10-20 00:15:16,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:15:16,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:15:16,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:15:16,432 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:15:16,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:16" (3/4) ... [2020-10-20 00:15:16,436 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:15:16,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:15:16,439 INFO L168 Benchmark]: Toolchain (without parser) took 988.28 ms. Allocated memory was 34.1 MB in the beginning and 45.6 MB in the end (delta: 11.5 MB). Free memory was 7.2 MB in the beginning and 11.3 MB in the end (delta: -4.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:16,441 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 34.1 MB. Free memory was 12.4 MB in the beginning and 12.4 MB in the end (delta: 47.7 kB). Peak memory consumption was 47.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:16,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.43 ms. Allocated memory was 36.2 MB in the beginning and 43.5 MB in the end (delta: 7.3 MB). Free memory was 19.1 MB in the beginning and 26.2 MB in the end (delta: -7.1 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:16,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.50 ms. Allocated memory is still 43.5 MB. Free memory was 26.1 MB in the beginning and 24.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:16,444 INFO L168 Benchmark]: Boogie Preprocessor took 20.37 ms. Allocated memory is still 43.5 MB. Free memory was 24.5 MB in the beginning and 23.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:16,446 INFO L168 Benchmark]: RCFGBuilder took 254.64 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 23.3 MB in the beginning and 25.6 MB in the end (delta: -2.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:16,447 INFO L168 Benchmark]: TraceAbstraction took 320.77 ms. Allocated memory is still 45.6 MB. Free memory was 25.2 MB in the beginning and 12.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:16,447 INFO L168 Benchmark]: Witness Printer took 4.60 ms. Allocated memory is still 45.6 MB. Free memory was 11.8 MB in the beginning and 11.3 MB in the end (delta: 424.6 kB). Peak memory consumption was 424.6 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:16,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 34.1 MB. Free memory was 12.4 MB in the beginning and 12.4 MB in the end (delta: 47.7 kB). Peak memory consumption was 47.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 328.43 ms. Allocated memory was 36.2 MB in the beginning and 43.5 MB in the end (delta: 7.3 MB). Free memory was 19.1 MB in the beginning and 26.2 MB in the end (delta: -7.1 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 37.50 ms. Allocated memory is still 43.5 MB. Free memory was 26.1 MB in the beginning and 24.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 20.37 ms. Allocated memory is still 43.5 MB. Free memory was 24.5 MB in the beginning and 23.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 254.64 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 23.3 MB in the beginning and 25.6 MB in the end (delta: -2.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 320.77 ms. Allocated memory is still 45.6 MB. Free memory was 25.2 MB in the beginning and 12.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. * Witness Printer took 4.60 ms. Allocated memory is still 45.6 MB. Free memory was 11.8 MB in the beginning and 11.3 MB in the end (delta: 424.6 kB). Peak memory consumption was 424.6 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 9, overapproximation of to_real at line 10. Possible FailurePath: [L6] unsigned int i, j; [L7] double d; [L9] i=100.0 [L10] d=i [L11] j=d [L12] COND TRUE !(j==100) [L3] __assert_fail("0", "float-no-simp1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:15:18,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:15:18,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:15:18,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:15:18,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:15:18,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:15:18,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:15:18,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:15:18,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:15:18,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:15:18,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:15:18,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:15:18,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:15:18,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:15:18,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:15:18,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:15:18,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:15:18,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:15:18,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:15:18,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:15:18,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:15:18,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:15:18,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:15:18,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:15:18,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:15:18,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:15:18,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:15:18,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:15:18,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:15:18,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:15:18,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:15:18,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:15:18,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:15:18,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:15:18,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:15:18,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:15:18,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:15:18,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:15:18,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:15:18,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:15:18,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:15:18,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:15:18,788 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:15:18,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:15:18,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:15:18,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:15:18,791 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:15:18,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:15:18,792 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:15:18,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:15:18,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:15:18,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:15:18,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:15:18,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:15:18,794 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:15:18,794 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:15:18,795 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:15:18,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:15:18,795 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:15:18,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:15:18,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:15:18,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:15:18,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:15:18,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:15:18,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:15:18,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:15:18,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:15:18,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:15:18,798 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:15:18,798 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:15:18,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:15:18,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:15:18,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:15:18,799 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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(reach_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 -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-10-20 00:15:18,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:15:19,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:15:19,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:15:19,019 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:15:19,020 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:15:19,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-10-20 00:15:19,093 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a19974a/c323dd84599f474bb74a80ab1d22ba8f/FLAG1763718b4 [2020-10-20 00:15:19,558 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:15:19,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-10-20 00:15:19,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a19974a/c323dd84599f474bb74a80ab1d22ba8f/FLAG1763718b4 [2020-10-20 00:15:19,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a19974a/c323dd84599f474bb74a80ab1d22ba8f [2020-10-20 00:15:19,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:15:19,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:15:19,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:19,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:15:19,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:15:19,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:19" (1/1) ... [2020-10-20 00:15:19,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e72744d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:19, skipping insertion in model container [2020-10-20 00:15:19,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:19" (1/1) ... [2020-10-20 00:15:19,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:15:19,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:15:20,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:20,247 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:15:20,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:20,283 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:15:20,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20 WrapperNode [2020-10-20 00:15:20,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:20,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:20,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:15:20,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:15:20,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20" (1/1) ... [2020-10-20 00:15:20,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20" (1/1) ... [2020-10-20 00:15:20,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:20,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:15:20,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:15:20,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:15:20,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20" (1/1) ... [2020-10-20 00:15:20,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20" (1/1) ... [2020-10-20 00:15:20,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20" (1/1) ... [2020-10-20 00:15:20,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20" (1/1) ... [2020-10-20 00:15:20,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20" (1/1) ... [2020-10-20 00:15:20,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20" (1/1) ... [2020-10-20 00:15:20,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20" (1/1) ... [2020-10-20 00:15:20,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:15:20,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:15:20,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:15:20,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:15:20,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 00:15:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:15:20,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:15:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:15:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:15:20,772 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:15:20,773 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 00:15:20,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:20 BoogieIcfgContainer [2020-10-20 00:15:20,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:15:20,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:15:20,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:15:20,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:15:20,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:15:19" (1/3) ... [2020-10-20 00:15:20,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@379df644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:20, skipping insertion in model container [2020-10-20 00:15:20,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:20" (2/3) ... [2020-10-20 00:15:20,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@379df644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:20, skipping insertion in model container [2020-10-20 00:15:20,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:20" (3/3) ... [2020-10-20 00:15:20,784 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-10-20 00:15:20,797 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:15:20,803 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:15:20,814 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:15:20,834 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:15:20,835 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:15:20,835 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:15:20,835 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:15:20,835 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:15:20,836 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:15:20,836 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:15:20,836 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:15:20,849 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-10-20 00:15:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:15:20,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:15:20,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:15:20,856 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:15:20,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:15:20,861 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-20 00:15:20,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:15:20,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371017039] [2020-10-20 00:15:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 00:15:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:15:20,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 00:15:20,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:15:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:15:21,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:15:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:15:21,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371017039] [2020-10-20 00:15:21,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:15:21,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-20 00:15:21,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654962190] [2020-10-20 00:15:21,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 00:15:21,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:15:21,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 00:15:21,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-20 00:15:21,160 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-10-20 00:15:21,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:15:21,200 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-10-20 00:15:21,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 00:15:21,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-20 00:15:21,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:15:21,211 INFO L225 Difference]: With dead ends: 12 [2020-10-20 00:15:21,211 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:15:21,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-20 00:15:21,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:15:21,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:15:21,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:15:21,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:15:21,245 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-20 00:15:21,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:15:21,245 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:15:21,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 00:15:21,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:15:21,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:15:21,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:15:21,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:15:21,467 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:15:21,467 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:15:21,467 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:15:21,467 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:15:21,467 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:15:21,467 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-20 00:15:21,468 INFO L274 CegarLoopResult]: For program point L4(lines 4 13) no Hoare annotation was computed. [2020-10-20 00:15:21,468 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:15:21,468 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:15:21,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:15:21 BoogieIcfgContainer [2020-10-20 00:15:21,473 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:15:21,474 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:15:21,474 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:15:21,474 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:15:21,475 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:20" (3/4) ... [2020-10-20 00:15:21,483 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:15:21,504 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-20 00:15:21,505 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 00:15:21,506 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 00:15:21,507 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:15:21,547 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:15:21,547 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:15:21,550 INFO L168 Benchmark]: Toolchain (without parser) took 1599.73 ms. Allocated memory was 35.7 MB in the beginning and 46.1 MB in the end (delta: 10.5 MB). Free memory was 16.2 MB in the beginning and 12.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:21,551 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 34.1 MB. Free memory was 9.9 MB in the beginning and 9.9 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:21,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.12 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 15.4 MB in the beginning and 25.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:21,553 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.51 ms. Allocated memory is still 44.0 MB. Free memory was 25.5 MB in the beginning and 23.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:21,554 INFO L168 Benchmark]: Boogie Preprocessor took 24.56 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 22.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:21,555 INFO L168 Benchmark]: RCFGBuilder took 431.02 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 22.5 MB in the beginning and 23.2 MB in the end (delta: -725.9 kB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:21,556 INFO L168 Benchmark]: TraceAbstraction took 696.86 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 14.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:21,557 INFO L168 Benchmark]: Witness Printer took 73.76 ms. Allocated memory is still 46.1 MB. Free memory was 14.8 MB in the beginning and 12.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:21,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 34.1 MB. Free memory was 9.9 MB in the beginning and 9.9 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 328.12 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 15.4 MB in the beginning and 25.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 34.51 ms. Allocated memory is still 44.0 MB. Free memory was 25.5 MB in the beginning and 23.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 24.56 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 22.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 431.02 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 22.5 MB in the beginning and 23.2 MB in the end (delta: -725.9 kB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 696.86 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 14.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 14.3 GB. * Witness Printer took 73.76 ms. Allocated memory is still 46.1 MB. Free memory was 14.8 MB in the beginning and 12.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 57 SizeOfPredicates, 5 NumberOfNonLiveVariables, 27 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...