./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.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-lit/UrbanMine-ESOP2014-Fig3.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 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 04:06:16,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:06:16,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:06:16,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:06:16,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:06:16,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:06:16,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:06:16,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:06:16,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:06:16,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:06:16,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:06:16,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:06:16,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:06:16,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:06:16,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:06:16,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:06:16,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:06:16,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:06:16,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:06:16,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:06:16,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:06:16,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:06:16,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:06:16,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:06:16,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:06:16,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:06:16,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:06:16,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:06:16,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:06:16,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:06:16,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:06:16,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:06:16,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:06:16,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:06:16,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:06:16,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:06:16,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:06:16,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:06:16,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:06:16,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:06:16,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:06:16,343 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:06:16,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:06:16,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:06:16,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:06:16,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:06:16,405 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:06:16,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:06:16,406 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:06:16,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:06:16,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:06:16,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:06:16,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:06:16,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:06:16,408 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:06:16,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:06:16,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:06:16,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:06:16,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:06:16,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:06:16,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:06:16,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:06:16,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:06:16,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:06:16,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:06:16,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:06:16,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:06:16,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:06:16,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:06:16,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:06:16,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 [2020-10-26 04:06:16,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:06:16,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:06:16,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:06:16,883 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:06:16,885 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:06:16,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-10-26 04:06:16,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944da623f/e9e37f741a85406f89b0a1081ade6bdd/FLAG7e81c2bf5 [2020-10-26 04:06:17,567 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:06:17,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-10-26 04:06:17,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944da623f/e9e37f741a85406f89b0a1081ade6bdd/FLAG7e81c2bf5 [2020-10-26 04:06:17,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944da623f/e9e37f741a85406f89b0a1081ade6bdd [2020-10-26 04:06:17,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:06:17,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:06:17,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:06:17,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:06:17,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:06:17,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:06:17" (1/1) ... [2020-10-26 04:06:17,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f456ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:17, skipping insertion in model container [2020-10-26 04:06:17,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:06:17" (1/1) ... [2020-10-26 04:06:17,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:06:17,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:06:18,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:06:18,200 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:06:18,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:06:18,229 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:06:18,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18 WrapperNode [2020-10-26 04:06:18,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:06:18,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:06:18,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:06:18,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:06:18,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18" (1/1) ... [2020-10-26 04:06:18,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18" (1/1) ... [2020-10-26 04:06:18,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:06:18,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:06:18,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:06:18,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:06:18,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18" (1/1) ... [2020-10-26 04:06:18,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18" (1/1) ... [2020-10-26 04:06:18,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18" (1/1) ... [2020-10-26 04:06:18,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18" (1/1) ... [2020-10-26 04:06:18,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18" (1/1) ... [2020-10-26 04:06:18,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18" (1/1) ... [2020-10-26 04:06:18,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18" (1/1) ... [2020-10-26 04:06:18,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:06:18,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:06:18,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:06:18,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:06:18,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18" (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 04:06:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:06:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:06:18,696 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:06:18,696 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:06:18,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:06:18 BoogieIcfgContainer [2020-10-26 04:06:18,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:06:18,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:06:18,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:06:18,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:06:18,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:06:17" (1/3) ... [2020-10-26 04:06:18,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5e4863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:06:18, skipping insertion in model container [2020-10-26 04:06:18,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:18" (2/3) ... [2020-10-26 04:06:18,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5e4863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:06:18, skipping insertion in model container [2020-10-26 04:06:18,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:06:18" (3/3) ... [2020-10-26 04:06:18,708 INFO L111 eAbstractionObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2020-10-26 04:06:18,722 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:06:18,728 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-26 04:06:18,743 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-26 04:06:18,781 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:06:18,782 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:06:18,782 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:06:18,782 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:06:18,783 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:06:18,783 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:06:18,783 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:06:18,783 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:06:18,801 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-26 04:06:18,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:06:18,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:18,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:06:18,809 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 04:06:18,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:18,816 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2020-10-26 04:06:18,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:18,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063697866] [2020-10-26 04:06:18,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:18,992 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 04:06:18,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063697866] [2020-10-26 04:06:18,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:06:18,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:06:18,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873666048] [2020-10-26 04:06:19,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:06:19,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:06:19,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:06:19,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:06:19,019 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2020-10-26 04:06:19,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:06:19,106 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2020-10-26 04:06:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:06:19,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-26 04:06:19,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:06:19,119 INFO L225 Difference]: With dead ends: 43 [2020-10-26 04:06:19,120 INFO L226 Difference]: Without dead ends: 30 [2020-10-26 04:06:19,123 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 04:06:19,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-26 04:06:19,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-10-26 04:06:19,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-26 04:06:19,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-10-26 04:06:19,167 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 5 [2020-10-26 04:06:19,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:06:19,168 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-26 04:06:19,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:06:19,168 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-10-26 04:06:19,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:06:19,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:19,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:06:19,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:06:19,174 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 04:06:19,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:19,176 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2020-10-26 04:06:19,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:19,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989630539] [2020-10-26 04:06:19,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:19,211 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 04:06:19,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989630539] [2020-10-26 04:06:19,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:06:19,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:06:19,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268543529] [2020-10-26 04:06:19,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:06:19,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:06:19,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:06:19,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:06:19,217 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 3 states. [2020-10-26 04:06:19,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:06:19,243 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2020-10-26 04:06:19,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:06:19,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-26 04:06:19,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:06:19,245 INFO L225 Difference]: With dead ends: 28 [2020-10-26 04:06:19,245 INFO L226 Difference]: Without dead ends: 26 [2020-10-26 04:06:19,246 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 04:06:19,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-26 04:06:19,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-26 04:06:19,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-26 04:06:19,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-10-26 04:06:19,253 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 5 [2020-10-26 04:06:19,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:06:19,254 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-10-26 04:06:19,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:06:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2020-10-26 04:06:19,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:06:19,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:19,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:06:19,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:06:19,256 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 04:06:19,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:19,257 INFO L82 PathProgramCache]: Analyzing trace with hash 29879476, now seen corresponding path program 1 times [2020-10-26 04:06:19,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:19,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532420718] [2020-10-26 04:06:19,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:19,281 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 04:06:19,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532420718] [2020-10-26 04:06:19,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:06:19,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:06:19,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689902481] [2020-10-26 04:06:19,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:06:19,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:06:19,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:06:19,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:06:19,286 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand 3 states. [2020-10-26 04:06:19,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:06:19,314 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-10-26 04:06:19,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:06:19,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-26 04:06:19,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:06:19,316 INFO L225 Difference]: With dead ends: 26 [2020-10-26 04:06:19,316 INFO L226 Difference]: Without dead ends: 25 [2020-10-26 04:06:19,317 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 04:06:19,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-26 04:06:19,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-26 04:06:19,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-26 04:06:19,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2020-10-26 04:06:19,323 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 5 [2020-10-26 04:06:19,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:06:19,324 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-10-26 04:06:19,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:06:19,324 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-10-26 04:06:19,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-26 04:06:19,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:19,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:06:19,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 04:06:19,326 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 04:06:19,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:19,327 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2020-10-26 04:06:19,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:19,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982300139] [2020-10-26 04:06:19,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:19,353 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 04:06:19,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982300139] [2020-10-26 04:06:19,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:06:19,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:06:19,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583163145] [2020-10-26 04:06:19,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:06:19,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:06:19,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:06:19,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:06:19,356 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 3 states. [2020-10-26 04:06:19,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:06:19,400 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-10-26 04:06:19,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:06:19,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-26 04:06:19,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:06:19,403 INFO L225 Difference]: With dead ends: 52 [2020-10-26 04:06:19,403 INFO L226 Difference]: Without dead ends: 28 [2020-10-26 04:06:19,404 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 04:06:19,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-26 04:06:19,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-26 04:06:19,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-26 04:06:19,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2020-10-26 04:06:19,416 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 6 [2020-10-26 04:06:19,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:06:19,417 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2020-10-26 04:06:19,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:06:19,417 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2020-10-26 04:06:19,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-26 04:06:19,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:19,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:06:19,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 04:06:19,421 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 04:06:19,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:19,422 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2020-10-26 04:06:19,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:19,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996591593] [2020-10-26 04:06:19,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:19,491 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 04:06:19,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996591593] [2020-10-26 04:06:19,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:06:19,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:06:19,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032008950] [2020-10-26 04:06:19,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:06:19,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:06:19,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:06:19,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:06:19,494 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 3 states. [2020-10-26 04:06:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:06:19,518 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2020-10-26 04:06:19,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:06:19,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-26 04:06:19,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:06:19,519 INFO L225 Difference]: With dead ends: 29 [2020-10-26 04:06:19,519 INFO L226 Difference]: Without dead ends: 27 [2020-10-26 04:06:19,520 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 04:06:19,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-26 04:06:19,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2020-10-26 04:06:19,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-26 04:06:19,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2020-10-26 04:06:19,525 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 6 [2020-10-26 04:06:19,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:06:19,526 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-10-26 04:06:19,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:06:19,526 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-10-26 04:06:19,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-26 04:06:19,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:19,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:06:19,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 04:06:19,527 INFO L429 AbstractCegarLoop]: === Iteration 6 === [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 04:06:19,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:19,528 INFO L82 PathProgramCache]: Analyzing trace with hash 926263822, now seen corresponding path program 1 times [2020-10-26 04:06:19,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:19,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596260761] [2020-10-26 04:06:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:19,552 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 04:06:19,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596260761] [2020-10-26 04:06:19,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:06:19,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:06:19,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841212345] [2020-10-26 04:06:19,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:06:19,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:06:19,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:06:19,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:06:19,556 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 3 states. [2020-10-26 04:06:19,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:06:19,583 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2020-10-26 04:06:19,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:06:19,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-26 04:06:19,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:06:19,585 INFO L225 Difference]: With dead ends: 26 [2020-10-26 04:06:19,585 INFO L226 Difference]: Without dead ends: 25 [2020-10-26 04:06:19,585 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 04:06:19,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-26 04:06:19,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-26 04:06:19,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-26 04:06:19,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2020-10-26 04:06:19,591 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 6 [2020-10-26 04:06:19,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:06:19,591 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2020-10-26 04:06:19,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:06:19,591 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2020-10-26 04:06:19,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 04:06:19,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:19,592 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:06:19,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 04:06:19,593 INFO L429 AbstractCegarLoop]: === Iteration 7 === [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 04:06:19,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:19,593 INFO L82 PathProgramCache]: Analyzing trace with hash -248985325, now seen corresponding path program 1 times [2020-10-26 04:06:19,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:19,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678784663] [2020-10-26 04:06:19,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:19,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:06:19,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678784663] [2020-10-26 04:06:19,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816590730] [2020-10-26 04:06:19,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:06:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:19,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-26 04:06:19,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:06:19,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:06:19,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 04:06:19,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-10-26 04:06:19,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16161707] [2020-10-26 04:06:19,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:06:19,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:06:19,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:06:19,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:06:19,775 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 4 states. [2020-10-26 04:06:19,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:06:19,856 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-10-26 04:06:19,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:06:19,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-26 04:06:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:06:19,858 INFO L225 Difference]: With dead ends: 50 [2020-10-26 04:06:19,859 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 04:06:19,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:06:19,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 04:06:19,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 04:06:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 04:06:19,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:06:19,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-26 04:06:19,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:06:19,861 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:06:19,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:06:19,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:06:19,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:06:20,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-26 04:06:20,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 04:06:20,116 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-10-26 04:06:20,116 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:06:20,116 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-26 04:06:20,116 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2020-10-26 04:06:20,117 INFO L274 CegarLoopResult]: For program point L27(lines 27 32) no Hoare annotation was computed. [2020-10-26 04:06:20,117 INFO L270 CegarLoopResult]: At program point L27-2(lines 18 34) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-10-26 04:06:20,117 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-26 04:06:20,117 INFO L274 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-10-26 04:06:20,117 INFO L274 CegarLoopResult]: For program point L19(lines 19 33) no Hoare annotation was computed. [2020-10-26 04:06:20,117 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2020-10-26 04:06:20,118 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-10-26 04:06:20,118 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-26 04:06:20,118 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 04:06:20,118 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:06:20,118 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2020-10-26 04:06:20,118 INFO L274 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-10-26 04:06:20,118 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:06:20,119 INFO L274 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-26 04:06:20,119 INFO L274 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-10-26 04:06:20,119 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 04:06:20,119 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-10-26 04:06:20,119 INFO L274 CegarLoopResult]: For program point L20(lines 20 25) no Hoare annotation was computed. [2020-10-26 04:06:20,119 INFO L274 CegarLoopResult]: For program point L18-2(lines 18 34) no Hoare annotation was computed. [2020-10-26 04:06:20,119 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2020-10-26 04:06:20,119 INFO L277 CegarLoopResult]: At program point L35(lines 13 36) the Hoare annotation is: true [2020-10-26 04:06:20,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:06:20 BoogieIcfgContainer [2020-10-26 04:06:20,135 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:06:20,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:06:20,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:06:20,136 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:06:20,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:06:18" (3/4) ... [2020-10-26 04:06:20,140 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:06:20,152 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-26 04:06:20,152 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 04:06:20,206 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:06:20,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:06:20,209 INFO L168 Benchmark]: Toolchain (without parser) took 2253.96 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 21.3 MB in the beginning and 49.0 MB in the end (delta: -27.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:20,210 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 44.0 MB. Free memory was 28.7 MB in the beginning and 28.6 MB in the end (delta: 42.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:06:20,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.65 ms. Allocated memory is still 44.0 MB. Free memory was 20.7 MB in the beginning and 23.5 MB in the end (delta: -2.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:20,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.70 ms. Allocated memory is still 44.0 MB. Free memory was 23.4 MB in the beginning and 22.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:06:20,212 INFO L168 Benchmark]: Boogie Preprocessor took 25.57 ms. Allocated memory is still 44.0 MB. Free memory was 22.2 MB in the beginning and 21.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:20,213 INFO L168 Benchmark]: RCFGBuilder took 405.36 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.2 MB in the beginning and 30.8 MB in the end (delta: -9.7 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:20,215 INFO L168 Benchmark]: TraceAbstraction took 1435.02 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 22.2 MB in the end (delta: 8.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:20,215 INFO L168 Benchmark]: Witness Printer took 70.91 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 22.2 MB in the beginning and 49.0 MB in the end (delta: -26.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:20,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 44.0 MB. Free memory was 28.7 MB in the beginning and 28.6 MB in the end (delta: 42.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 269.65 ms. Allocated memory is still 44.0 MB. Free memory was 20.7 MB in the beginning and 23.5 MB in the end (delta: -2.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.70 ms. Allocated memory is still 44.0 MB. Free memory was 23.4 MB in the beginning and 22.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.57 ms. Allocated memory is still 44.0 MB. Free memory was 22.2 MB in the beginning and 21.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 405.36 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.2 MB in the beginning and 30.8 MB in the end (delta: -9.7 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1435.02 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 22.2 MB in the end (delta: 8.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Witness Printer took 70.91 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 22.2 MB in the beginning and 49.0 MB in the end (delta: -26.8 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: 30]: 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 21]: 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 0 <= x + 2147483648) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 108 SDtfs, 74 SDslu, 30 SDs, 0 SdLazy, 91 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, 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, 7 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 9 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 3/4 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...