./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.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_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/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 ee88e8123d344a14970849fa456c02e35e9325dc ........................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:16:14,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:16:14,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:16:14,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:16:14,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:16:14,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:16:14,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:16:14,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:16:14,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:16:14,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:16:14,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:16:14,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:16:14,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:16:14,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:16:14,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:16:14,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:16:14,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:16:14,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:16:14,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:16:14,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:16:14,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:16:14,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:16:14,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:16:14,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:16:14,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:16:14,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:16:14,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:16:14,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:16:14,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:16:14,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:16:14,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:16:14,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:16:14,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:16:14,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:16:14,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:16:14,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:16:14,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:16:14,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:16:14,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:16:14,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:16:14,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:16:14,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-28 03:16:14,348 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:16:14,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:16:14,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:16:14,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:16:14,351 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:16:14,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:16:14,351 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:16:14,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:16:14,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:16:14,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:16:14,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:16:14,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:16:14,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:16:14,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:16:14,354 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:16:14,354 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:16:14,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:16:14,354 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:16:14,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:16:14,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:16:14,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:16:14,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:16:14,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:16:14,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:16:14,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:16:14,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:16:14,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:16:14,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:16:14,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:16:14,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:16:14,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:16:14,358 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_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee88e8123d344a14970849fa456c02e35e9325dc [2020-11-28 03:16:14,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:16:14,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:16:14,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:16:14,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:16:14,656 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:16:14,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer/../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2020-11-28 03:16:14,720 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer/data/a474104b5/ea68de389c734fa089828d84abfc39cc/FLAG555c486df [2020-11-28 03:16:15,151 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:16:15,152 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2020-11-28 03:16:15,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer/data/a474104b5/ea68de389c734fa089828d84abfc39cc/FLAG555c486df [2020-11-28 03:16:15,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer/data/a474104b5/ea68de389c734fa089828d84abfc39cc [2020-11-28 03:16:15,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:16:15,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:16:15,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:16:15,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:16:15,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:16:15,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:15" (1/1) ... [2020-11-28 03:16:15,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d8b928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15, skipping insertion in model container [2020-11-28 03:16:15,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:15" (1/1) ... [2020-11-28 03:16:15,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:16:15,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:16:15,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:16:15,803 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:16:15,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:16:15,833 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:16:15,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15 WrapperNode [2020-11-28 03:16:15,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:16:15,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:16:15,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:16:15,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:16:15,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15" (1/1) ... [2020-11-28 03:16:15,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15" (1/1) ... [2020-11-28 03:16:15,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:16:15,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:16:15,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:16:15,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:16:15,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15" (1/1) ... [2020-11-28 03:16:15,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15" (1/1) ... [2020-11-28 03:16:15,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15" (1/1) ... [2020-11-28 03:16:15,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15" (1/1) ... [2020-11-28 03:16:15,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15" (1/1) ... [2020-11-28 03:16:15,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15" (1/1) ... [2020-11-28 03:16:15,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15" (1/1) ... [2020-11-28 03:16:15,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:16:15,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:16:15,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:16:15,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:16:15,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/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 [2020-11-28 03:16:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:16:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:16:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:16:16,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:16:16,333 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:16:16,333 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:16:16,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:16 BoogieIcfgContainer [2020-11-28 03:16:16,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:16:16,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:16:16,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:16:16,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:16:16,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:16:15" (1/3) ... [2020-11-28 03:16:16,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eae8935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:16:16, skipping insertion in model container [2020-11-28 03:16:16,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:15" (2/3) ... [2020-11-28 03:16:16,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eae8935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:16:16, skipping insertion in model container [2020-11-28 03:16:16,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:16" (3/3) ... [2020-11-28 03:16:16,357 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark43_conjunctive.i [2020-11-28 03:16:16,371 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:16:16,375 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-28 03:16:16,384 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-28 03:16:16,407 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:16:16,407 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:16:16,407 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:16:16,407 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:16:16,407 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:16:16,408 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:16:16,408 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:16:16,408 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:16:16,421 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-11-28 03:16:16,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:16:16,425 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:16,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:16:16,426 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:16:16,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:16,434 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2020-11-28 03:16:16,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:16:16,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332450086] [2020-11-28 03:16:16,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:16:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:16,583 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 03:16:16,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332450086] [2020-11-28 03:16:16,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:16,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:16:16,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041716015] [2020-11-28 03:16:16,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:16:16,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:16:16,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:16:16,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:16:16,604 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-11-28 03:16:16,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:16,673 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-11-28 03:16:16,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:16:16,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-28 03:16:16,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:16,684 INFO L225 Difference]: With dead ends: 34 [2020-11-28 03:16:16,684 INFO L226 Difference]: Without dead ends: 12 [2020-11-28 03:16:16,695 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 03:16:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-28 03:16:16,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-11-28 03:16:16,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 03:16:16,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-11-28 03:16:16,730 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2020-11-28 03:16:16,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:16,731 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-11-28 03:16:16,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:16:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-11-28 03:16:16,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:16:16,732 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:16,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:16:16,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:16:16,732 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:16:16,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:16,735 INFO L82 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2020-11-28 03:16:16,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:16:16,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866103867] [2020-11-28 03:16:16,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:16:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:16,813 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 03:16:16,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866103867] [2020-11-28 03:16:16,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:16,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:16:16,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090211985] [2020-11-28 03:16:16,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:16:16,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:16:16,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:16:16,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:16:16,816 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 3 states. [2020-11-28 03:16:16,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:16,832 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-11-28 03:16:16,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:16:16,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 03:16:16,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:16,833 INFO L225 Difference]: With dead ends: 11 [2020-11-28 03:16:16,834 INFO L226 Difference]: Without dead ends: 10 [2020-11-28 03:16:16,834 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 03:16:16,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-28 03:16:16,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-28 03:16:16,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 03:16:16,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-28 03:16:16,837 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2020-11-28 03:16:16,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:16,837 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-11-28 03:16:16,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:16:16,837 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-28 03:16:16,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:16:16,838 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:16,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:16:16,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:16:16,839 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:16:16,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:16,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2020-11-28 03:16:16,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:16:16,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128691271] [2020-11-28 03:16:16,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:16:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:16,905 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 03:16:16,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128691271] [2020-11-28 03:16:16,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:16,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:16:16,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488750012] [2020-11-28 03:16:16,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:16:16,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:16:16,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:16:16,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:16:16,908 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2020-11-28 03:16:16,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:16,932 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-11-28 03:16:16,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:16:16,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-28 03:16:16,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:16,934 INFO L225 Difference]: With dead ends: 11 [2020-11-28 03:16:16,934 INFO L226 Difference]: Without dead ends: 10 [2020-11-28 03:16:16,935 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 03:16:16,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-28 03:16:16,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-11-28 03:16:16,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-28 03:16:16,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-28 03:16:16,937 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-11-28 03:16:16,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:16,938 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-28 03:16:16,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:16:16,938 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-28 03:16:16,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 03:16:16,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:16,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:16:16,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:16:16,939 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:16:16,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:16,940 INFO L82 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2020-11-28 03:16:16,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:16:16,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6844261] [2020-11-28 03:16:16,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:16:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:17,004 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 03:16:17,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6844261] [2020-11-28 03:16:17,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:17,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:16:17,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542604626] [2020-11-28 03:16:17,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:16:17,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:16:17,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:16:17,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:16:17,007 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2020-11-28 03:16:17,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:17,025 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-11-28 03:16:17,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:16:17,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-28 03:16:17,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:17,026 INFO L225 Difference]: With dead ends: 9 [2020-11-28 03:16:17,026 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:16:17,027 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 03:16:17,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:16:17,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:16:17,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:16:17,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:16:17,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-11-28 03:16:17,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:17,028 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:16:17,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:16:17,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:16:17,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:16:17,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:16:17,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:16:17,056 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-28 03:16:17,057 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:16:17,057 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-11-28 03:16:17,057 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-11-28 03:16:17,057 INFO L274 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-11-28 03:16:17,057 INFO L270 CegarLoopResult]: At program point L23-2(lines 23 26) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648))) [2020-11-28 03:16:17,058 INFO L274 CegarLoopResult]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2020-11-28 03:16:17,058 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-28 03:16:17,058 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-28 03:16:17,058 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:16:17,058 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-28 03:16:17,058 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-11-28 03:16:17,058 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:16:17,059 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:16:17,059 INFO L277 CegarLoopResult]: At program point L28(lines 19 29) the Hoare annotation is: true [2020-11-28 03:16:17,059 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-28 03:16:17,059 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-11-28 03:16:17,059 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-11-28 03:16:17,059 INFO L274 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-11-28 03:16:17,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:16:17 BoogieIcfgContainer [2020-11-28 03:16:17,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:16:17,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:16:17,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:16:17,076 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:16:17,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:16" (3/4) ... [2020-11-28 03:16:17,080 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:16:17,091 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:16:17,091 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:16:17,092 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:16:17,092 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:16:17,143 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_699b8bcc-e535-4cfc-8bb5-74552aadfc4b/bin/uautomizer/witness.graphml [2020-11-28 03:16:17,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:16:17,145 INFO L168 Benchmark]: Toolchain (without parser) took 1590.03 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 50.5 MB in the beginning and 63.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:17,145 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 79.7 MB. Free memory is still 39.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:16:17,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.79 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 50.3 MB in the beginning and 74.5 MB in the end (delta: -24.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:17,147 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.74 ms. Allocated memory is still 96.5 MB. Free memory was 74.5 MB in the beginning and 72.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:17,148 INFO L168 Benchmark]: Boogie Preprocessor took 43.69 ms. Allocated memory is still 96.5 MB. Free memory was 72.9 MB in the beginning and 71.9 MB in the end (delta: 946.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:16:17,148 INFO L168 Benchmark]: RCFGBuilder took 413.65 ms. Allocated memory is still 96.5 MB. Free memory was 71.9 MB in the beginning and 60.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:17,154 INFO L168 Benchmark]: TraceAbstraction took 738.80 ms. Allocated memory is still 96.5 MB. Free memory was 59.8 MB in the beginning and 65.6 MB in the end (delta: -5.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:16:17,154 INFO L168 Benchmark]: Witness Printer took 67.16 ms. Allocated memory is still 96.5 MB. Free memory was 65.6 MB in the beginning and 63.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:17,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 79.7 MB. Free memory is still 39.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 278.79 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 50.3 MB in the beginning and 74.5 MB in the end (delta: -24.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.74 ms. Allocated memory is still 96.5 MB. Free memory was 74.5 MB in the beginning and 72.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.69 ms. Allocated memory is still 96.5 MB. Free memory was 72.9 MB in the beginning and 71.9 MB in the end (delta: 946.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 413.65 ms. Allocated memory is still 96.5 MB. Free memory was 71.9 MB in the beginning and 60.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 738.80 ms. Allocated memory is still 96.5 MB. Free memory was 59.8 MB in the beginning and 65.6 MB in the end (delta: -5.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 67.16 ms. Allocated memory is still 96.5 MB. Free memory was 65.6 MB in the beginning and 63.2 MB in the end (delta: 2.4 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 && 0 <= y + 2147483648 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 15 SDslu, 13 SDs, 0 SdLazy, 25 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...