./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/oomInt.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/oomInt.c_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2763f76915d5cab2d6be4026b27ecbab3e16ac73 ............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:39:57,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:39:57,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:39:57,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:39:57,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:39:57,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:39:57,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:39:58,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:39:58,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:39:58,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:39:58,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:39:58,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:39:58,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:39:58,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:39:58,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:39:58,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:39:58,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:39:58,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:39:58,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:39:58,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:39:58,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:39:58,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:39:58,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:39:58,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:39:58,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:39:58,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:39:58,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:39:58,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:39:58,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:39:58,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:39:58,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:39:58,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:39:58,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:39:58,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:39:58,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:39:58,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:39:58,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:39:58,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:39:58,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:39:58,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:39:58,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:39:58,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:39:58,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:39:58,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:39:58,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:39:58,116 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:39:58,116 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:39:58,116 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:39:58,117 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:39:58,117 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:39:58,117 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:39:58,117 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:39:58,117 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:39:58,118 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:39:58,118 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:39:58,118 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:39:58,118 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:39:58,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:39:58,119 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:39:58,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:39:58,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:39:58,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:39:58,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:39:58,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:39:58,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:39:58,121 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:39:58,121 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:39:58,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:39:58,121 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:39:58,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:39:58,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:39:58,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:39:58,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:39:58,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:58,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:39:58,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:39:58,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:39:58,123 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:39:58,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:39:58,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:39:58,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:39:58,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:39:58,124 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2763f76915d5cab2d6be4026b27ecbab3e16ac73 [2020-11-28 07:39:58,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:39:58,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:39:58,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:39:58,437 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:39:58,440 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:39:58,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/../../sv-benchmarks/c/ldv-regression/oomInt.c_1.i [2020-11-28 07:39:58,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/data/fb13177ef/0c03ec40a1e144e683bb4c66939151d8/FLAG9c845912d [2020-11-28 07:39:58,959 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:39:58,960 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/sv-benchmarks/c/ldv-regression/oomInt.c_1.i [2020-11-28 07:39:58,965 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/data/fb13177ef/0c03ec40a1e144e683bb4c66939151d8/FLAG9c845912d [2020-11-28 07:39:59,352 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/data/fb13177ef/0c03ec40a1e144e683bb4c66939151d8 [2020-11-28 07:39:59,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:39:59,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:39:59,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:59,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:39:59,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:39:59,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:59" (1/1) ... [2020-11-28 07:39:59,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d706309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59, skipping insertion in model container [2020-11-28 07:39:59,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:59" (1/1) ... [2020-11-28 07:39:59,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:39:59,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:59,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:59,572 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:39:59,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:59,621 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:39:59,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59 WrapperNode [2020-11-28 07:39:59,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:59,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:59,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:39:59,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:39:59,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59" (1/1) ... [2020-11-28 07:39:59,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59" (1/1) ... [2020-11-28 07:39:59,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:59,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:39:59,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:39:59,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:39:59,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59" (1/1) ... [2020-11-28 07:39:59,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59" (1/1) ... [2020-11-28 07:39:59,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59" (1/1) ... [2020-11-28 07:39:59,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59" (1/1) ... [2020-11-28 07:39:59,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59" (1/1) ... [2020-11-28 07:39:59,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59" (1/1) ... [2020-11-28 07:39:59,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59" (1/1) ... [2020-11-28 07:39:59,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:39:59,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:39:59,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:39:59,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:39:59,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/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 [2020-11-28 07:39:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:39:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:39:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:39:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:40:00,304 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:40:00,304 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 07:40:00,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:00 BoogieIcfgContainer [2020-11-28 07:40:00,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:40:00,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:40:00,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:40:00,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:40:00,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:39:59" (1/3) ... [2020-11-28 07:40:00,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f91dab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:40:00, skipping insertion in model container [2020-11-28 07:40:00,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:59" (2/3) ... [2020-11-28 07:40:00,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f91dab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:40:00, skipping insertion in model container [2020-11-28 07:40:00,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:00" (3/3) ... [2020-11-28 07:40:00,315 INFO L111 eAbstractionObserver]: Analyzing ICFG oomInt.c_1.i [2020-11-28 07:40:00,326 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:40:00,331 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:40:00,342 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:40:00,364 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:40:00,364 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:40:00,364 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:40:00,365 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:40:00,365 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:40:00,365 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:40:00,365 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:40:00,365 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:40:00,375 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-11-28 07:40:00,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 07:40:00,380 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:40:00,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 07:40:00,381 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:40:00,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:40:00,386 INFO L82 PathProgramCache]: Analyzing trace with hash 59071, now seen corresponding path program 1 times [2020-11-28 07:40:00,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:40:00,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57117589] [2020-11-28 07:40:00,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:40:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:40:00,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:40:00,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57117589] [2020-11-28 07:40:00,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:40:00,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:40:00,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942358485] [2020-11-28 07:40:00,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:40:00,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:40:00,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:40:00,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:40:00,580 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2020-11-28 07:40:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:40:00,598 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-11-28 07:40:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:40:00,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-28 07:40:00,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:40:00,606 INFO L225 Difference]: With dead ends: 8 [2020-11-28 07:40:00,606 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:40:00,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:40:00,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:40:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:40:00,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:40:00,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:40:00,636 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2020-11-28 07:40:00,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:40:00,636 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:40:00,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:40:00,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:40:00,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:40:00,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:40:00,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:40:00,662 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:40:00,662 INFO L274 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-11-28 07:40:00,662 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-28 07:40:00,663 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:40:00,663 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-11-28 07:40:00,663 INFO L274 CegarLoopResult]: For program point L7(lines 34 37) no Hoare annotation was computed. [2020-11-28 07:40:00,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:40:00 BoogieIcfgContainer [2020-11-28 07:40:00,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:40:00,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:40:00,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:40:00,671 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:40:00,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:00" (3/4) ... [2020-11-28 07:40:00,675 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:40:00,683 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-28 07:40:00,684 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:40:00,684 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:40:00,684 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:40:00,717 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_54fe4483-4f35-4666-8345-6551f2055fc1/bin/utaipan/witness.graphml [2020-11-28 07:40:00,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:40:00,719 INFO L168 Benchmark]: Toolchain (without parser) took 1362.55 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 46.2 MB in the beginning and 43.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:00,720 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 79.7 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:00,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.47 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 45.9 MB in the beginning and 81.2 MB in the end (delta: -35.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:00,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.88 ms. Allocated memory is still 102.8 MB. Free memory was 81.2 MB in the beginning and 79.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:00,722 INFO L168 Benchmark]: Boogie Preprocessor took 39.58 ms. Allocated memory is still 102.8 MB. Free memory was 79.7 MB in the beginning and 78.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:00,723 INFO L168 Benchmark]: RCFGBuilder took 602.21 ms. Allocated memory is still 102.8 MB. Free memory was 78.5 MB in the beginning and 63.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:00,723 INFO L168 Benchmark]: TraceAbstraction took 362.17 ms. Allocated memory is still 102.8 MB. Free memory was 63.3 MB in the beginning and 45.6 MB in the end (delta: 17.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:00,724 INFO L168 Benchmark]: Witness Printer took 46.51 ms. Allocated memory is still 102.8 MB. Free memory was 45.6 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:00,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 79.7 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.47 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 45.9 MB in the beginning and 81.2 MB in the end (delta: -35.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.88 ms. Allocated memory is still 102.8 MB. Free memory was 81.2 MB in the beginning and 79.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.58 ms. Allocated memory is still 102.8 MB. Free memory was 79.7 MB in the beginning and 78.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 602.21 ms. Allocated memory is still 102.8 MB. Free memory was 78.5 MB in the beginning and 63.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 362.17 ms. Allocated memory is still 102.8 MB. Free memory was 63.3 MB in the beginning and 45.6 MB in the end (delta: 17.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 46.51 ms. Allocated memory is still 102.8 MB. Free memory was 45.6 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...