./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ..................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:41:00,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:41:00,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:41:00,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:41:00,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:41:00,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:41:00,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:41:00,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:41:00,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:41:00,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:41:00,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:41:00,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:41:00,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:41:00,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:41:00,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:41:00,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:41:00,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:41:00,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:41:00,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:41:00,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:41:00,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:41:00,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:41:00,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:41:00,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:41:00,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:41:00,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:41:00,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:41:00,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:41:00,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:41:00,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:41:00,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:41:00,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:41:00,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:41:00,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:41:00,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:41:00,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:41:00,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:41:00,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:41:00,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:41:00,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:41:00,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:41:00,339 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:41:00,352 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:41:00,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:41:00,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:41:00,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:41:00,354 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:41:00,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:41:00,354 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:41:00,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:41:00,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:41:00,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:41:00,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:41:00,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:41:00,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:41:00,356 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:41:00,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:41:00,356 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:41:00,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:41:00,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:41:00,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:41:00,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:41:00,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:41:00,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:41:00,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:41:00,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:41:00,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:41:00,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:41:00,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:41:00,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:41:00,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2019-11-16 00:41:00,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:41:00,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:41:00,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:41:00,410 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:41:00,410 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:41:00,412 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-11-16 00:41:00,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/data/5d7307e32/90ba3559afa0450bbda28e79945b23af/FLAG8a8bd5b05 [2019-11-16 00:41:00,865 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:41:00,867 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-11-16 00:41:00,872 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/data/5d7307e32/90ba3559afa0450bbda28e79945b23af/FLAG8a8bd5b05 [2019-11-16 00:41:01,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/data/5d7307e32/90ba3559afa0450bbda28e79945b23af [2019-11-16 00:41:01,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:41:01,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:41:01,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:41:01,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:41:01,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:41:01,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:41:01" (1/1) ... [2019-11-16 00:41:01,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4146e191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01, skipping insertion in model container [2019-11-16 00:41:01,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:41:01" (1/1) ... [2019-11-16 00:41:01,274 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:41:01,292 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:41:01,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:41:01,509 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:41:01,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:41:01,541 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:41:01,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01 WrapperNode [2019-11-16 00:41:01,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:41:01,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:41:01,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:41:01,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:41:01,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01" (1/1) ... [2019-11-16 00:41:01,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01" (1/1) ... [2019-11-16 00:41:01,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:41:01,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:41:01,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:41:01,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:41:01,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01" (1/1) ... [2019-11-16 00:41:01,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01" (1/1) ... [2019-11-16 00:41:01,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01" (1/1) ... [2019-11-16 00:41:01,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01" (1/1) ... [2019-11-16 00:41:01,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01" (1/1) ... [2019-11-16 00:41:01,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01" (1/1) ... [2019-11-16 00:41:01,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01" (1/1) ... [2019-11-16 00:41:01,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:41:01,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:41:01,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:41:01,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:41:01,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:41:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:41:01,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:41:01,771 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:41:01,772 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-16 00:41:01,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:01 BoogieIcfgContainer [2019-11-16 00:41:01,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:41:01,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:41:01,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:41:01,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:41:01,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:41:01" (1/3) ... [2019-11-16 00:41:01,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f79903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:41:01, skipping insertion in model container [2019-11-16 00:41:01,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:01" (2/3) ... [2019-11-16 00:41:01,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f79903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:41:01, skipping insertion in model container [2019-11-16 00:41:01,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:01" (3/3) ... [2019-11-16 00:41:01,780 INFO L109 eAbstractionObserver]: Analyzing ICFG float3.c [2019-11-16 00:41:01,787 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:41:01,793 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:41:01,801 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:41:01,819 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:41:01,819 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:41:01,819 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:41:01,819 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:41:01,820 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:41:01,820 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:41:01,820 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:41:01,820 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:41:01,831 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-16 00:41:01,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-16 00:41:01,836 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:41:01,837 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:41:01,838 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:41:01,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:41:01,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2019-11-16 00:41:01,851 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:41:01,851 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518730122] [2019-11-16 00:41:01,851 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:41:01,852 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:41:01,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:41:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:41:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:41:01,934 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:41:01,935 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:41:01,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:41:01 BoogieIcfgContainer [2019-11-16 00:41:01,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:41:01,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:41:01,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:41:01,952 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:41:01,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:01" (3/4) ... [2019-11-16 00:41:01,955 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:41:01,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:41:01,957 INFO L168 Benchmark]: Toolchain (without parser) took 701.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:41:01,958 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:41:01,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:41:01,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:41:01,960 INFO L168 Benchmark]: Boogie Preprocessor took 11.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:41:01,960 INFO L168 Benchmark]: RCFGBuilder took 195.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:41:01,961 INFO L168 Benchmark]: TraceAbstraction took 177.30 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:41:01,962 INFO L168 Benchmark]: Witness Printer took 3.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:41:01,965 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 286.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 195.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 177.30 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 24]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 20. Possible FailurePath: [L4] double d = 0.0; VAL [d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [d=0] [L8] d = 1.0 VAL [d=1] [L20] d += (x == 2) [L22] d += (x > 3) [L24] COND TRUE !(d == 2.0) [L24] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-16 00:41:04,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:41:04,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:41:04,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:41:04,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:41:04,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:41:04,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:41:04,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:41:04,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:41:04,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:41:04,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:41:04,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:41:04,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:41:04,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:41:04,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:41:04,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:41:04,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:41:04,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:41:04,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:41:04,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:41:04,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:41:04,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:41:04,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:41:04,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:41:04,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:41:04,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:41:04,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:41:04,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:41:04,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:41:04,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:41:04,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:41:04,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:41:04,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:41:04,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:41:04,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:41:04,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:41:04,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:41:04,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:41:04,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:41:04,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:41:04,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:41:04,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:41:04,167 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:41:04,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:41:04,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:41:04,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:41:04,179 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:41:04,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:41:04,180 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:41:04,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:41:04,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:41:04,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:41:04,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:41:04,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:41:04,181 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:41:04,181 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:41:04,182 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:41:04,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:41:04,182 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:41:04,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:41:04,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:41:04,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:41:04,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:41:04,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:41:04,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:41:04,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:41:04,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:41:04,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:41:04,185 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:41:04,185 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:41:04,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:41:04,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:41:04,186 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2019-11-16 00:41:04,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:41:04,223 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:41:04,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:41:04,227 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:41:04,229 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:41:04,230 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-11-16 00:41:04,288 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/data/1133573b7/bf39c71c1b344edf9c15ad5c12fdc4c3/FLAG545b0749b [2019-11-16 00:41:04,667 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:41:04,668 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-11-16 00:41:04,673 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/data/1133573b7/bf39c71c1b344edf9c15ad5c12fdc4c3/FLAG545b0749b [2019-11-16 00:41:05,079 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/data/1133573b7/bf39c71c1b344edf9c15ad5c12fdc4c3 [2019-11-16 00:41:05,081 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:41:05,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:41:05,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:41:05,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:41:05,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:41:05,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:41:05" (1/1) ... [2019-11-16 00:41:05,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f60fce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05, skipping insertion in model container [2019-11-16 00:41:05,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:41:05" (1/1) ... [2019-11-16 00:41:05,101 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:41:05,115 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:41:05,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:41:05,252 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:41:05,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:41:05,280 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:41:05,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05 WrapperNode [2019-11-16 00:41:05,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:41:05,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:41:05,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:41:05,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:41:05,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05" (1/1) ... [2019-11-16 00:41:05,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05" (1/1) ... [2019-11-16 00:41:05,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:41:05,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:41:05,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:41:05,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:41:05,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05" (1/1) ... [2019-11-16 00:41:05,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05" (1/1) ... [2019-11-16 00:41:05,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05" (1/1) ... [2019-11-16 00:41:05,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05" (1/1) ... [2019-11-16 00:41:05,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05" (1/1) ... [2019-11-16 00:41:05,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05" (1/1) ... [2019-11-16 00:41:05,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05" (1/1) ... [2019-11-16 00:41:05,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:41:05,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:41:05,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:41:05,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:41:05,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:41:05,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:41:05,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:41:06,210 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:41:06,210 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-16 00:41:06,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:06 BoogieIcfgContainer [2019-11-16 00:41:06,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:41:06,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:41:06,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:41:06,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:41:06,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:41:05" (1/3) ... [2019-11-16 00:41:06,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706819e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:41:06, skipping insertion in model container [2019-11-16 00:41:06,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:05" (2/3) ... [2019-11-16 00:41:06,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706819e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:41:06, skipping insertion in model container [2019-11-16 00:41:06,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:06" (3/3) ... [2019-11-16 00:41:06,217 INFO L109 eAbstractionObserver]: Analyzing ICFG float3.c [2019-11-16 00:41:06,226 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:41:06,233 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:41:06,243 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:41:06,263 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:41:06,263 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:41:06,263 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:41:06,264 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:41:06,264 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:41:06,264 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:41:06,264 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:41:06,264 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:41:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-16 00:41:06,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-16 00:41:06,279 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:41:06,279 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:41:06,281 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:41:06,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:41:06,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2019-11-16 00:41:06,292 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:41:06,292 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156410196] [2019-11-16 00:41:06,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-16 00:41:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:41:06,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:41:06,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:41:06,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:41:06,619 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:41:30,078 WARN L191 SmtUtils]: Spent 20.97 s on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2019-11-16 00:41:30,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:41:30,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156410196] [2019-11-16 00:41:30,562 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:41:30,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-16 00:41:30,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766813008] [2019-11-16 00:41:30,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:41:30,567 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:41:30,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:41:30,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:41:30,583 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 7 states. [2019-11-16 00:41:37,792 WARN L191 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 33 DAG size of output: 20 [2019-11-16 00:41:39,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:41:39,143 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-11-16 00:41:39,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-16 00:41:39,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-11-16 00:41:39,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:41:39,149 INFO L225 Difference]: With dead ends: 20 [2019-11-16 00:41:39,149 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:41:39,152 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:41:39,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:41:39,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:41:39,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:41:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:41:39,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-16 00:41:39,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:41:39,170 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:41:39,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:41:39,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:41:39,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:41:39,371 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:41:39,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-16 00:41:39,377 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-16 00:41:39,377 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-16 00:41:39,378 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2019-11-16 00:41:39,378 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-16 00:41:39,378 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-16 00:41:39,378 INFO L443 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-16 00:41:39,379 INFO L443 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-11-16 00:41:39,379 INFO L443 ceAbstractionStarter]: For program point L15(lines 15 16) no Hoare annotation was computed. [2019-11-16 00:41:39,379 INFO L443 ceAbstractionStarter]: For program point L15-2(lines 15 16) no Hoare annotation was computed. [2019-11-16 00:41:39,379 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 25) no Hoare annotation was computed. [2019-11-16 00:41:39,379 INFO L443 ceAbstractionStarter]: For program point L6(lines 6 9) no Hoare annotation was computed. [2019-11-16 00:41:39,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:41:39 BoogieIcfgContainer [2019-11-16 00:41:39,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:41:39,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:41:39,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:41:39,383 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:41:39,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:06" (3/4) ... [2019-11-16 00:41:39,387 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:41:39,396 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-16 00:41:39,397 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-16 00:41:39,429 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_17d9808c-ab9d-4cf7-a103-b3ac63d9ffd7/bin/uautomizer/witness.graphml [2019-11-16 00:41:39,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:41:39,431 INFO L168 Benchmark]: Toolchain (without parser) took 34348.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -115.0 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:41:39,431 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:41:39,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.23 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:41:39,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -203.8 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:41:39,433 INFO L168 Benchmark]: Boogie Preprocessor took 21.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:41:39,434 INFO L168 Benchmark]: RCFGBuilder took 825.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:41:39,435 INFO L168 Benchmark]: TraceAbstraction took 33170.99 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: 58.3 MB). Peak memory consumption was 58.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:41:39,435 INFO L168 Benchmark]: Witness Printer took 46.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:41:39,438 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.23 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -203.8 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 825.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 33170.99 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: 58.3 MB). Peak memory consumption was 58.3 MB. Max. memory is 11.5 GB. * Witness Printer took 46.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 33.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 19 SDslu, 13 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 30.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 24.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 900 SizeOfPredicates, 2 NumberOfNonLiveVariables, 10 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...