./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/ConversionToSignedInt.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/ConversionToSignedInt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9053a59183bda48b00ea35c6720e8fb929c8af09 ............................................................................................................................................................................................................................... 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 07:32:11,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:32:11,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:32:11,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:32:11,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:32:11,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:32:11,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:32:11,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:32:11,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:32:11,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:32:11,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:32:12,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:32:12,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:32:12,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:32:12,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:32:12,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:32:12,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:32:12,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:32:12,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:32:12,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:32:12,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:32:12,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:32:12,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:32:12,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:32:12,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:32:12,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:32:12,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:32:12,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:32:12,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:32:12,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:32:12,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:32:12,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:32:12,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:32:12,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:32:12,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:32:12,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:32:12,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:32:12,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:32:12,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:32:12,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:32:12,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:32:12,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-28 07:32:12,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:32:12,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:32:12,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:32:12,124 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:32:12,125 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:32:12,125 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:32:12,125 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:32:12,125 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:32:12,126 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:32:12,126 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:32:12,127 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:32:12,128 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:32:12,128 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:32:12,128 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:32:12,129 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:32:12,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:32:12,130 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 07:32:12,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:32:12,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:32:12,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:32:12,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:32:12,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:32:12,138 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 07:32:12,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:32:12,139 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:32:12,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:32:12,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:32:12,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:32:12,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:32:12,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:32:12,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:32:12,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:32:12,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:32:12,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:32:12,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:32:12,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:32:12,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:32:12,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:32:12,148 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_4b272560-8397-421e-90fd-5543015b74c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9053a59183bda48b00ea35c6720e8fb929c8af09 [2020-11-28 07:32:12,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:32:12,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:32:12,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:32:12,576 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:32:12,578 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:32:12,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan/../../sv-benchmarks/c/signedintegeroverflow-regression/ConversionToSignedInt.i [2020-11-28 07:32:12,680 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan/data/a68ec2965/8ab394d216384f43b22e435d24ab14c6/FLAG59526b512 [2020-11-28 07:32:13,232 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:32:13,233 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/sv-benchmarks/c/signedintegeroverflow-regression/ConversionToSignedInt.i [2020-11-28 07:32:13,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan/data/a68ec2965/8ab394d216384f43b22e435d24ab14c6/FLAG59526b512 [2020-11-28 07:32:13,554 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan/data/a68ec2965/8ab394d216384f43b22e435d24ab14c6 [2020-11-28 07:32:13,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:32:13,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:32:13,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:32:13,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:32:13,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:32:13,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:32:13" (1/1) ... [2020-11-28 07:32:13,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d086763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:13, skipping insertion in model container [2020-11-28 07:32:13,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:32:13" (1/1) ... [2020-11-28 07:32:13,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:32:13,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:32:13,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:32:13,996 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:32:14,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:32:14,110 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:32:14,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14 WrapperNode [2020-11-28 07:32:14,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:32:14,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:32:14,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:32:14,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:32:14,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14" (1/1) ... [2020-11-28 07:32:14,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14" (1/1) ... [2020-11-28 07:32:14,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:32:14,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:32:14,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:32:14,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:32:14,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14" (1/1) ... [2020-11-28 07:32:14,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14" (1/1) ... [2020-11-28 07:32:14,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14" (1/1) ... [2020-11-28 07:32:14,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14" (1/1) ... [2020-11-28 07:32:14,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14" (1/1) ... [2020-11-28 07:32:14,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14" (1/1) ... [2020-11-28 07:32:14,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14" (1/1) ... [2020-11-28 07:32:14,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:32:14,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:32:14,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:32:14,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:32:14,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/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 07:32:14,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:32:14,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:32:14,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:32:14,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:32:14,729 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:32:14,729 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-28 07:32:14,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:32:14 BoogieIcfgContainer [2020-11-28 07:32:14,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:32:14,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:32:14,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:32:14,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:32:14,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:32:13" (1/3) ... [2020-11-28 07:32:14,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33079b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:32:14, skipping insertion in model container [2020-11-28 07:32:14,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:32:14" (2/3) ... [2020-11-28 07:32:14,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33079b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:32:14, skipping insertion in model container [2020-11-28 07:32:14,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:32:14" (3/3) ... [2020-11-28 07:32:14,742 INFO L111 eAbstractionObserver]: Analyzing ICFG ConversionToSignedInt.i [2020-11-28 07:32:14,772 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:32:14,777 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-11-28 07:32:14,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-11-28 07:32:14,865 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:32:14,865 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:32:14,866 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:32:14,866 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:32:14,866 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:32:14,866 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:32:14,866 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:32:14,867 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:32:14,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-11-28 07:32:14,886 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:32:14,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-11-28 07:32:14,934 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:32:14,934 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-28 07:32:14,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:32:14 BoogieIcfgContainer [2020-11-28 07:32:14,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:32:14,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:32:14,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:32:14,944 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:32:14,945 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:32:14" (3/4) ... [2020-11-28 07:32:14,949 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:32:14,961 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-28 07:32:14,962 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:32:14,962 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:32:14,962 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:32:14,998 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4b272560-8397-421e-90fd-5543015b74c0/bin/utaipan/witness.graphml [2020-11-28 07:32:14,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:32:15,001 INFO L168 Benchmark]: Toolchain (without parser) took 1440.02 ms. Allocated memory is still 96.5 MB. Free memory was 62.8 MB in the beginning and 40.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:15,002 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 69.2 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:32:15,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.53 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 65.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:15,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.14 ms. Allocated memory is still 96.5 MB. Free memory was 64.8 MB in the beginning and 63.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:32:15,005 INFO L168 Benchmark]: Boogie Preprocessor took 47.47 ms. Allocated memory is still 96.5 MB. Free memory was 63.7 MB in the beginning and 62.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:15,006 INFO L168 Benchmark]: RCFGBuilder took 506.45 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 49.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:15,007 INFO L168 Benchmark]: TraceAbstraction took 209.44 ms. Allocated memory is still 96.5 MB. Free memory was 49.2 MB in the beginning and 42.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:15,008 INFO L168 Benchmark]: Witness Printer took 54.42 ms. Allocated memory is still 96.5 MB. Free memory was 42.8 MB in the beginning and 40.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:32:15,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 69.2 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 551.53 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 65.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.14 ms. Allocated memory is still 96.5 MB. Free memory was 64.8 MB in the beginning and 63.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.47 ms. Allocated memory is still 96.5 MB. Free memory was 63.7 MB in the beginning and 62.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 506.45 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 49.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 209.44 ms. Allocated memory is still 96.5 MB. Free memory was 49.2 MB in the beginning and 42.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Witness Printer took 54.42 ms. Allocated memory is still 96.5 MB. Free memory was 42.8 MB in the beginning and 40.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2occurred 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: 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: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...