./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 64bit --witnessprinter.graph.data.programhash 687269bb6882b72a3d48999f1e5c55a1d5283a94 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:03:03,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:03:03,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:03:03,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:03:03,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:03:03,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:03:03,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:03:03,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:03:03,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:03:03,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:03:03,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:03:03,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:03:03,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:03:03,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:03:03,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:03:03,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:03:03,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:03:03,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:03:03,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:03:03,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:03:03,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:03:03,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:03:03,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:03:03,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:03:03,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:03:03,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:03:03,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:03:03,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:03:03,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:03:03,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:03:03,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:03:03,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:03:03,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:03:03,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:03:03,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:03:03,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:03:03,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:03:03,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:03:03,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:03:03,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:03:03,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:03:03,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:03:04,004 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:03:04,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:03:04,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:03:04,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:03:04,007 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:03:04,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:03:04,007 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:03:04,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:03:04,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:03:04,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:03:04,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:03:04,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:03:04,009 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:03:04,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:03:04,009 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:03:04,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:03:04,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:03:04,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:03:04,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:03:04,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:03:04,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:03:04,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:03:04,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:03:04,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:03:04,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:03:04,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:03:04,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:03:04,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:03:04,013 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2020-10-26 04:03:04,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:03:04,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:03:04,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:03:04,502 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:03:04,503 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:03:04,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2020-10-26 04:03:04,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/589346dc8/2e1c0efa790943c3b9baf1ce497dac4e/FLAG2d1249b46 [2020-10-26 04:03:05,162 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:03:05,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2020-10-26 04:03:05,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/589346dc8/2e1c0efa790943c3b9baf1ce497dac4e/FLAG2d1249b46 [2020-10-26 04:03:05,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/589346dc8/2e1c0efa790943c3b9baf1ce497dac4e [2020-10-26 04:03:05,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:03:05,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:03:05,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:03:05,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:03:05,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:03:05,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:03:05" (1/1) ... [2020-10-26 04:03:05,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b293622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05, skipping insertion in model container [2020-10-26 04:03:05,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:03:05" (1/1) ... [2020-10-26 04:03:05,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:03:05,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:03:05,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:03:05,866 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:03:05,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:03:05,897 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:03:05,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05 WrapperNode [2020-10-26 04:03:05,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:03:05,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:03:05,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:03:05,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:03:05,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05" (1/1) ... [2020-10-26 04:03:05,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05" (1/1) ... [2020-10-26 04:03:05,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:03:05,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:03:05,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:03:05,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:03:05,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05" (1/1) ... [2020-10-26 04:03:05,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05" (1/1) ... [2020-10-26 04:03:05,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05" (1/1) ... [2020-10-26 04:03:05,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05" (1/1) ... [2020-10-26 04:03:05,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05" (1/1) ... [2020-10-26 04:03:05,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05" (1/1) ... [2020-10-26 04:03:05,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05" (1/1) ... [2020-10-26 04:03:05,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:03:05,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:03:05,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:03:05,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:03:05,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:03:06,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:03:06,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:03:06,236 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:03:06,237 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:03:06,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:03:06 BoogieIcfgContainer [2020-10-26 04:03:06,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:03:06,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:03:06,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:03:06,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:03:06,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:03:05" (1/3) ... [2020-10-26 04:03:06,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac44a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:03:06, skipping insertion in model container [2020-10-26 04:03:06,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:05" (2/3) ... [2020-10-26 04:03:06,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac44a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:03:06, skipping insertion in model container [2020-10-26 04:03:06,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:03:06" (3/3) ... [2020-10-26 04:03:06,248 INFO L111 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2020-10-26 04:03:06,260 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:03:06,266 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-26 04:03:06,280 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-26 04:03:06,308 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:03:06,309 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:03:06,309 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:03:06,309 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:03:06,309 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:03:06,310 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:03:06,310 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:03:06,310 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:03:06,327 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-26 04:03:06,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:03:06,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:03:06,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:03:06,336 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:03:06,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:03:06,343 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2020-10-26 04:03:06,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:03:06,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363586283] [2020-10-26 04:03:06,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:03:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:03:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:03:06,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363586283] [2020-10-26 04:03:06,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:03:06,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:03:06,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561193847] [2020-10-26 04:03:06,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:03:06,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:03:06,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:03:06,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:03:06,537 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2020-10-26 04:03:06,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:03:06,634 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-10-26 04:03:06,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:03:06,637 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-26 04:03:06,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:03:06,648 INFO L225 Difference]: With dead ends: 55 [2020-10-26 04:03:06,648 INFO L226 Difference]: Without dead ends: 41 [2020-10-26 04:03:06,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:03:06,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-26 04:03:06,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 31. [2020-10-26 04:03:06,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-26 04:03:06,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2020-10-26 04:03:06,715 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 5 [2020-10-26 04:03:06,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:03:06,715 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-26 04:03:06,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:03:06,716 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2020-10-26 04:03:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:03:06,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:03:06,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:03:06,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:03:06,720 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:03:06,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:03:06,721 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2020-10-26 04:03:06,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:03:06,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147211123] [2020-10-26 04:03:06,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:03:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:03:06,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:03:06,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147211123] [2020-10-26 04:03:06,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:03:06,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:03:06,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570507048] [2020-10-26 04:03:06,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:03:06,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:03:06,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:03:06,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:03:06,792 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 3 states. [2020-10-26 04:03:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:03:06,895 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-10-26 04:03:06,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:03:06,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-26 04:03:06,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:03:06,897 INFO L225 Difference]: With dead ends: 50 [2020-10-26 04:03:06,897 INFO L226 Difference]: Without dead ends: 48 [2020-10-26 04:03:06,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:03:06,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-26 04:03:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 39. [2020-10-26 04:03:06,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-26 04:03:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2020-10-26 04:03:06,907 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 5 [2020-10-26 04:03:06,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:03:06,908 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-10-26 04:03:06,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:03:06,908 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2020-10-26 04:03:06,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-26 04:03:06,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:03:06,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:03:06,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:03:06,909 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:03:06,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:03:06,910 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2020-10-26 04:03:06,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:03:06,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078213001] [2020-10-26 04:03:06,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:03:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:03:06,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:03:06,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078213001] [2020-10-26 04:03:06,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:03:06,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:03:06,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607080383] [2020-10-26 04:03:06,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:03:06,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:03:06,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:03:06,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:03:06,952 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 3 states. [2020-10-26 04:03:06,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:03:06,990 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2020-10-26 04:03:06,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:03:06,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-26 04:03:06,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:03:06,992 INFO L225 Difference]: With dead ends: 39 [2020-10-26 04:03:06,992 INFO L226 Difference]: Without dead ends: 37 [2020-10-26 04:03:06,992 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 [2020-10-26 04:03:06,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-26 04:03:07,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-26 04:03:07,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-26 04:03:07,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2020-10-26 04:03:07,002 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 6 [2020-10-26 04:03:07,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:03:07,003 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2020-10-26 04:03:07,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:03:07,003 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2020-10-26 04:03:07,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-26 04:03:07,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:03:07,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:03:07,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 04:03:07,004 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:03:07,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:03:07,005 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2020-10-26 04:03:07,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:03:07,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87008610] [2020-10-26 04:03:07,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:03:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:03:07,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:03:07,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87008610] [2020-10-26 04:03:07,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:03:07,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:03:07,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136746344] [2020-10-26 04:03:07,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:03:07,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:03:07,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:03:07,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:03:07,033 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 3 states. [2020-10-26 04:03:07,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:03:07,062 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2020-10-26 04:03:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:03:07,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-26 04:03:07,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:03:07,063 INFO L225 Difference]: With dead ends: 37 [2020-10-26 04:03:07,063 INFO L226 Difference]: Without dead ends: 35 [2020-10-26 04:03:07,064 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 [2020-10-26 04:03:07,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-26 04:03:07,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-26 04:03:07,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-26 04:03:07,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2020-10-26 04:03:07,071 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 6 [2020-10-26 04:03:07,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:03:07,071 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2020-10-26 04:03:07,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:03:07,071 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2020-10-26 04:03:07,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 04:03:07,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:03:07,072 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:03:07,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 04:03:07,073 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:03:07,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:03:07,074 INFO L82 PathProgramCache]: Analyzing trace with hash 149003441, now seen corresponding path program 1 times [2020-10-26 04:03:07,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:03:07,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068809005] [2020-10-26 04:03:07,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:03:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:03:07,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:03:07,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068809005] [2020-10-26 04:03:07,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:03:07,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 04:03:07,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624845077] [2020-10-26 04:03:07,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:03:07,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:03:07,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:03:07,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:03:07,154 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand 4 states. [2020-10-26 04:03:07,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:03:07,238 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-10-26 04:03:07,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:03:07,239 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-26 04:03:07,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:03:07,239 INFO L225 Difference]: With dead ends: 35 [2020-10-26 04:03:07,240 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 04:03:07,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:03:07,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 04:03:07,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 04:03:07,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 04:03:07,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:03:07,242 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-26 04:03:07,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:03:07,242 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:03:07,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:03:07,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:03:07,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:03:07,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 04:03:07,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 04:03:07,265 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2020-10-26 04:03:07,265 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 04:03:07,265 INFO L274 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-10-26 04:03:07,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2020-10-26 04:03:07,266 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 04:03:07,266 INFO L274 CegarLoopResult]: For program point L36-1(line 36) no Hoare annotation was computed. [2020-10-26 04:03:07,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-10-26 04:03:07,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:03:07,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2020-10-26 04:03:07,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:03:07,267 INFO L274 CegarLoopResult]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2020-10-26 04:03:07,267 INFO L277 CegarLoopResult]: At program point L41(lines 19 42) the Hoare annotation is: true [2020-10-26 04:03:07,267 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-10-26 04:03:07,267 INFO L274 CegarLoopResult]: For program point L33(lines 33 37) no Hoare annotation was computed. [2020-10-26 04:03:07,267 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:03:07,267 INFO L274 CegarLoopResult]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2020-10-26 04:03:07,267 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-26 04:03:07,268 INFO L274 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-10-26 04:03:07,268 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2020-10-26 04:03:07,268 INFO L274 CegarLoopResult]: For program point L25(lines 25 39) no Hoare annotation was computed. [2020-10-26 04:03:07,269 INFO L270 CegarLoopResult]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483648) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-10-26 04:03:07,269 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-26 04:03:07,269 INFO L274 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-10-26 04:03:07,270 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2020-10-26 04:03:07,270 INFO L274 CegarLoopResult]: For program point L26(lines 26 30) no Hoare annotation was computed. [2020-10-26 04:03:07,270 INFO L274 CegarLoopResult]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2020-10-26 04:03:07,270 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2020-10-26 04:03:07,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:03:07 BoogieIcfgContainer [2020-10-26 04:03:07,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:03:07,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:03:07,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:03:07,292 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:03:07,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:03:06" (3/4) ... [2020-10-26 04:03:07,296 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:03:07,308 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-26 04:03:07,309 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 04:03:07,372 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:03:07,373 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:03:07,383 INFO L168 Benchmark]: Toolchain (without parser) took 1811.08 ms. Allocated memory is still 52.4 MB. Free memory was 29.8 MB in the beginning and 21.9 MB in the end (delta: 7.8 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:07,384 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 37.7 MB. Free memory was 24.5 MB in the beginning and 24.5 MB in the end (delta: 20.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:03:07,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.52 ms. Allocated memory is still 52.4 MB. Free memory was 29.1 MB in the beginning and 33.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:07,387 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.23 ms. Allocated memory is still 52.4 MB. Free memory was 33.9 MB in the beginning and 32.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:03:07,388 INFO L168 Benchmark]: Boogie Preprocessor took 20.43 ms. Allocated memory is still 52.4 MB. Free memory was 32.5 MB in the beginning and 31.6 MB in the end (delta: 925.9 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:07,388 INFO L168 Benchmark]: RCFGBuilder took 283.06 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 34.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:07,389 INFO L168 Benchmark]: TraceAbstraction took 1050.33 ms. Allocated memory is still 52.4 MB. Free memory was 34.2 MB in the beginning and 24.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:07,390 INFO L168 Benchmark]: Witness Printer took 81.29 ms. Allocated memory is still 52.4 MB. Free memory was 24.4 MB in the beginning and 21.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:07,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 37.7 MB. Free memory was 24.5 MB in the beginning and 24.5 MB in the end (delta: 20.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.52 ms. Allocated memory is still 52.4 MB. Free memory was 29.1 MB in the beginning and 33.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.23 ms. Allocated memory is still 52.4 MB. Free memory was 33.9 MB in the beginning and 32.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.43 ms. Allocated memory is still 52.4 MB. Free memory was 32.5 MB in the beginning and 31.6 MB in the end (delta: 925.9 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 283.06 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 34.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1050.33 ms. Allocated memory is still 52.4 MB. Free memory was 34.2 MB in the beginning and 24.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Witness Printer took 81.29 ms. Allocated memory is still 52.4 MB. Free memory was 24.4 MB in the beginning and 21.9 MB in the end (delta: 2.5 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: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: x <= 2147483648 && y <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 85 SDslu, 23 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, 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, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 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...