./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/parity.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/parity.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1296f658f5f284102ff72d10b015c6c25ce34cb8 .......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:27:10,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:27:10,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:27:10,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:27:10,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:27:10,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:27:10,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:27:10,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:27:10,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:27:10,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:27:10,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:27:10,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:27:10,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:27:10,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:27:10,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:27:10,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:27:10,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:27:10,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:27:10,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:27:10,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:27:10,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:27:10,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:27:10,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:27:10,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:27:10,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:27:10,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:27:10,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:27:10,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:27:10,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:27:10,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:27:10,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:27:10,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:27:10,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:27:10,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:27:10,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:27:10,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:27:10,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:27:10,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:27:10,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:27:10,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:27:10,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:27:10,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-30 01:27:10,918 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:27:10,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:27:10,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:27:10,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:27:10,922 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:27:10,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:27:10,922 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:27:10,922 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:27:10,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:27:10,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:27:10,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:27:10,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:27:10,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:27:10,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:27:10,925 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:27:10,926 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:27:10,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:27:10,926 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:27:10,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:27:10,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:27:10,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:27:10,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:27:10,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:27:10,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:27:10,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:27:10,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:27:10,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:27:10,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:27:10,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:27:10,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:27:10,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:27:10,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1296f658f5f284102ff72d10b015c6c25ce34cb8 [2020-11-30 01:27:11,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:27:11,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:27:11,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:27:11,340 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:27:11,341 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:27:11,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/../../sv-benchmarks/c/bitvector/parity.i [2020-11-30 01:27:11,453 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/data/244e3a2b8/107f544d8bdc4acf8e231c7e75b9278c/FLAGfb6d50f2d [2020-11-30 01:27:11,948 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:27:11,949 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/sv-benchmarks/c/bitvector/parity.i [2020-11-30 01:27:11,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/data/244e3a2b8/107f544d8bdc4acf8e231c7e75b9278c/FLAGfb6d50f2d [2020-11-30 01:27:12,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/data/244e3a2b8/107f544d8bdc4acf8e231c7e75b9278c [2020-11-30 01:27:12,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:27:12,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:27:12,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:27:12,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:27:12,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:27:12,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:27:12" (1/1) ... [2020-11-30 01:27:12,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c6be47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12, skipping insertion in model container [2020-11-30 01:27:12,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:27:12" (1/1) ... [2020-11-30 01:27:12,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:27:12,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:27:12,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:27:12,556 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:27:12,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:27:12,598 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:27:12,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12 WrapperNode [2020-11-30 01:27:12,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:27:12,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:27:12,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:27:12,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:27:12,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12" (1/1) ... [2020-11-30 01:27:12,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12" (1/1) ... [2020-11-30 01:27:12,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:27:12,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:27:12,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:27:12,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:27:12,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12" (1/1) ... [2020-11-30 01:27:12,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12" (1/1) ... [2020-11-30 01:27:12,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12" (1/1) ... [2020-11-30 01:27:12,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12" (1/1) ... [2020-11-30 01:27:12,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12" (1/1) ... [2020-11-30 01:27:12,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12" (1/1) ... [2020-11-30 01:27:12,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12" (1/1) ... [2020-11-30 01:27:12,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:27:12,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:27:12,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:27:12,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:27:12,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/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 [2020-11-30 01:27:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:27:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:27:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:27:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:27:13,014 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:27:13,014 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 01:27:13,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:13 BoogieIcfgContainer [2020-11-30 01:27:13,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:27:13,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:27:13,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:27:13,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:27:13,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:27:12" (1/3) ... [2020-11-30 01:27:13,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3260d28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:27:13, skipping insertion in model container [2020-11-30 01:27:13,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:12" (2/3) ... [2020-11-30 01:27:13,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3260d28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:27:13, skipping insertion in model container [2020-11-30 01:27:13,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:13" (3/3) ... [2020-11-30 01:27:13,027 INFO L111 eAbstractionObserver]: Analyzing ICFG parity.i [2020-11-30 01:27:13,041 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:27:13,046 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-11-30 01:27:13,072 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-11-30 01:27:13,118 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:27:13,119 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:27:13,119 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:27:13,119 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:27:13,119 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:27:13,120 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:27:13,120 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:27:13,120 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:27:13,135 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-30 01:27:13,141 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:27:13,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-11-30 01:27:13,298 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:27:13,299 INFO L277 CegarLoopResult]: At program point L60(lines 32 61) the Hoare annotation is: true [2020-11-30 01:27:13,299 INFO L274 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2020-11-30 01:27:13,299 INFO L274 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2020-11-30 01:27:13,299 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-11-30 01:27:13,299 INFO L274 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-11-30 01:27:13,300 INFO L274 CegarLoopResult]: For program point L42-2(lines 42 46) no Hoare annotation was computed. [2020-11-30 01:27:13,300 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:27:13,300 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:27:13,300 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:27:13,300 INFO L274 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-11-30 01:27:13,301 INFO L277 CegarLoopResult]: At program point L16-2(lines 15 20) the Hoare annotation is: true [2020-11-30 01:27:13,301 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 01:27:13,301 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-30 01:27:13,301 INFO L277 CegarLoopResult]: At program point L41-2(lines 41 48) the Hoare annotation is: true [2020-11-30 01:27:13,301 INFO L274 CegarLoopResult]: For program point L41-3(lines 41 48) no Hoare annotation was computed. [2020-11-30 01:27:13,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:27:13 BoogieIcfgContainer [2020-11-30 01:27:13,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:27:13,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:27:13,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:27:13,321 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:27:13,322 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:13" (3/4) ... [2020-11-30 01:27:13,326 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:27:13,341 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 01:27:13,342 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:27:13,344 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:27:13,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:27:13,447 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bb6f3e78-70e7-4d38-93bf-3ae43f48d2ee/bin/uautomizer/witness.graphml [2020-11-30 01:27:13,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:27:13,450 INFO L168 Benchmark]: Toolchain (without parser) took 1140.01 ms. Allocated memory is still 102.8 MB. Free memory was 66.8 MB in the beginning and 53.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:13,451 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 102.8 MB. Free memory was 74.9 MB in the beginning and 74.9 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:27:13,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.28 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 78.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:13,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.88 ms. Allocated memory is still 102.8 MB. Free memory was 78.6 MB in the beginning and 77.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:27:13,454 INFO L168 Benchmark]: Boogie Preprocessor took 27.21 ms. Allocated memory is still 102.8 MB. Free memory was 77.3 MB in the beginning and 76.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:27:13,454 INFO L168 Benchmark]: RCFGBuilder took 346.42 ms. Allocated memory is still 102.8 MB. Free memory was 76.1 MB in the beginning and 64.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:13,455 INFO L168 Benchmark]: TraceAbstraction took 299.91 ms. Allocated memory is still 102.8 MB. Free memory was 64.0 MB in the beginning and 56.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:13,456 INFO L168 Benchmark]: Witness Printer took 127.28 ms. Allocated memory is still 102.8 MB. Free memory was 56.8 MB in the beginning and 53.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:13,461 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 102.8 MB. Free memory was 74.9 MB in the beginning and 74.9 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.28 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 78.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.88 ms. Allocated memory is still 102.8 MB. Free memory was 78.6 MB in the beginning and 77.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.21 ms. Allocated memory is still 102.8 MB. Free memory was 77.3 MB in the beginning and 76.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 346.42 ms. Allocated memory is still 102.8 MB. Free memory was 76.1 MB in the beginning and 64.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 299.91 ms. Allocated memory is still 102.8 MB. Free memory was 64.0 MB in the beginning and 56.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Witness Printer took 127.28 ms. Allocated memory is still 102.8 MB. Free memory was 56.8 MB in the beginning and 53.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 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: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 3 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 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...