./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/BradleyMannaSipma-CAV2005-Fig1.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 6c09c2a46ed7454ea61f3b2ddb99e3e2ba9fd4da ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:51:05,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:51:05,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:51:05,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:51:05,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:51:05,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:51:05,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:51:05,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:51:05,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:51:05,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:51:05,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:51:05,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:51:05,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:51:05,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:51:05,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:51:05,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:51:05,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:51:05,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:51:05,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:51:05,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:51:05,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:51:05,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:51:05,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:51:05,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:51:05,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:51:05,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:51:05,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:51:05,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:51:05,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:51:05,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:51:05,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:51:05,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:51:05,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:51:05,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:51:05,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:51:05,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:51:05,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:51:05,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:51:05,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:51:05,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:51:05,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:51:05,322 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 02:51:05,356 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:51:05,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:51:05,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:51:05,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:51:05,361 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:51:05,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:51:05,365 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:51:05,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:51:05,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:51:05,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:51:05,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:51:05,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:51:05,366 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:51:05,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:51:05,367 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:51:05,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:51:05,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:51:05,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:51:05,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:51:05,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:51:05,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:51:05,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:51:05,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:51:05,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:51:05,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:51:05,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:51:05,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:51:05,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 6c09c2a46ed7454ea61f3b2ddb99e3e2ba9fd4da [2019-11-28 02:51:05,666 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:51:05,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:51:05,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:51:05,684 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:51:05,684 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:51:05,685 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2019-11-28 02:51:05,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9cc374ad/dd5c79b81ed440ad9f576a118d5df753/FLAG1d59415ed [2019-11-28 02:51:06,231 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:51:06,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2019-11-28 02:51:06,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9cc374ad/dd5c79b81ed440ad9f576a118d5df753/FLAG1d59415ed [2019-11-28 02:51:06,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9cc374ad/dd5c79b81ed440ad9f576a118d5df753 [2019-11-28 02:51:06,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:51:06,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:51:06,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:51:06,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:51:06,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:51:06,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:51:06" (1/1) ... [2019-11-28 02:51:06,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6bb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06, skipping insertion in model container [2019-11-28 02:51:06,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:51:06" (1/1) ... [2019-11-28 02:51:06,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:51:06,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:51:06,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:51:06,843 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:51:06,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:51:06,872 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:51:06,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06 WrapperNode [2019-11-28 02:51:06,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:51:06,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:51:06,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:51:06,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:51:06,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06" (1/1) ... [2019-11-28 02:51:06,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06" (1/1) ... [2019-11-28 02:51:06,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:51:06,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:51:06,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:51:06,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:51:06,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06" (1/1) ... [2019-11-28 02:51:06,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06" (1/1) ... [2019-11-28 02:51:06,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06" (1/1) ... [2019-11-28 02:51:06,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06" (1/1) ... [2019-11-28 02:51:06,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06" (1/1) ... [2019-11-28 02:51:06,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06" (1/1) ... [2019-11-28 02:51:06,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06" (1/1) ... [2019-11-28 02:51:06,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:51:06,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:51:06,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:51:06,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:51:06,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06" (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 [2019-11-28 02:51:07,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:51:07,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:51:07,225 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:51:07,225 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:51:07,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:51:07 BoogieIcfgContainer [2019-11-28 02:51:07,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:51:07,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:51:07,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:51:07,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:51:07,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:51:06" (1/3) ... [2019-11-28 02:51:07,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f843777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:51:07, skipping insertion in model container [2019-11-28 02:51:07,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:06" (2/3) ... [2019-11-28 02:51:07,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f843777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:51:07, skipping insertion in model container [2019-11-28 02:51:07,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:51:07" (3/3) ... [2019-11-28 02:51:07,237 INFO L109 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1.c [2019-11-28 02:51:07,248 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:51:07,257 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-28 02:51:07,272 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 02:51:07,323 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:51:07,324 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:51:07,324 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:51:07,324 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:51:07,324 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:51:07,324 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:51:07,325 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:51:07,325 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:51:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-28 02:51:07,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 02:51:07,368 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:51:07,369 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 02:51:07,370 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:51:07,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:51:07,378 INFO L82 PathProgramCache]: Analyzing trace with hash 29684842, now seen corresponding path program 1 times [2019-11-28 02:51:07,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:51:07,389 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179650936] [2019-11-28 02:51:07,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:51:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:07,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:07,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179650936] [2019-11-28 02:51:07,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:51:07,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:51:07,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769577597] [2019-11-28 02:51:07,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:51:07,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:51:07,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:51:07,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:51:07,574 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2019-11-28 02:51:07,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:51:07,728 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2019-11-28 02:51:07,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:51:07,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-28 02:51:07,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:51:07,743 INFO L225 Difference]: With dead ends: 42 [2019-11-28 02:51:07,744 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 02:51:07,747 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:51:07,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 02:51:07,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 14. [2019-11-28 02:51:07,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 02:51:07,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-28 02:51:07,782 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2019-11-28 02:51:07,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:51:07,782 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-28 02:51:07,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:51:07,782 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-28 02:51:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 02:51:07,783 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:51:07,783 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 02:51:07,784 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:51:07,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:51:07,784 INFO L82 PathProgramCache]: Analyzing trace with hash 29685034, now seen corresponding path program 1 times [2019-11-28 02:51:07,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:51:07,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756241784] [2019-11-28 02:51:07,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:51:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:07,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:07,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756241784] [2019-11-28 02:51:07,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:51:07,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:51:07,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643796734] [2019-11-28 02:51:07,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:51:07,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:51:07,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:51:07,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:51:07,847 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 4 states. [2019-11-28 02:51:07,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:51:07,946 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2019-11-28 02:51:07,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:51:07,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-28 02:51:07,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:51:07,948 INFO L225 Difference]: With dead ends: 25 [2019-11-28 02:51:07,948 INFO L226 Difference]: Without dead ends: 23 [2019-11-28 02:51:07,949 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:51:07,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-28 02:51:07,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 14. [2019-11-28 02:51:07,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 02:51:07,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-28 02:51:07,958 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2019-11-28 02:51:07,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:51:07,959 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-28 02:51:07,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:51:07,960 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-28 02:51:07,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:51:07,960 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:51:07,961 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-28 02:51:07,961 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:51:07,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:51:07,962 INFO L82 PathProgramCache]: Analyzing trace with hash -199749339, now seen corresponding path program 1 times [2019-11-28 02:51:07,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:51:07,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841883485] [2019-11-28 02:51:07,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:51:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:08,040 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:08,040 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841883485] [2019-11-28 02:51:08,040 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285665981] [2019-11-28 02:51:08,041 INFO L94 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) [2019-11-28 02:51:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:51:08,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:51:08,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:51:08,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:08,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 02:51:08,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2019-11-28 02:51:08,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009730649] [2019-11-28 02:51:08,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:51:08,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:51:08,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:51:08,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:51:08,149 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 5 states. [2019-11-28 02:51:08,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:51:08,228 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2019-11-28 02:51:08,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:51:08,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 02:51:08,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:51:08,230 INFO L225 Difference]: With dead ends: 32 [2019-11-28 02:51:08,230 INFO L226 Difference]: Without dead ends: 31 [2019-11-28 02:51:08,231 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:51:08,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-28 02:51:08,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 17. [2019-11-28 02:51:08,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 02:51:08,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-28 02:51:08,236 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 9 [2019-11-28 02:51:08,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:51:08,236 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-28 02:51:08,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:51:08,237 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-28 02:51:08,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:51:08,237 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:51:08,237 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:51:08,441 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:51:08,441 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:51:08,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:51:08,442 INFO L82 PathProgramCache]: Analyzing trace with hash -199749147, now seen corresponding path program 1 times [2019-11-28 02:51:08,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:51:08,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020378310] [2019-11-28 02:51:08,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:51:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:08,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:08,493 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020378310] [2019-11-28 02:51:08,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706240653] [2019-11-28 02:51:08,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:51:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:08,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:51:08,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:51:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:08,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:51:08,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2019-11-28 02:51:08,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994752911] [2019-11-28 02:51:08,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:51:08,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:51:08,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:51:08,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:51:08,585 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 8 states. [2019-11-28 02:51:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:51:08,808 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2019-11-28 02:51:08,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-28 02:51:08,811 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-11-28 02:51:08,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:51:08,812 INFO L225 Difference]: With dead ends: 48 [2019-11-28 02:51:08,812 INFO L226 Difference]: Without dead ends: 47 [2019-11-28 02:51:08,813 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2019-11-28 02:51:08,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-28 02:51:08,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 31. [2019-11-28 02:51:08,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-28 02:51:08,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2019-11-28 02:51:08,828 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 9 [2019-11-28 02:51:08,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:51:08,828 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2019-11-28 02:51:08,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:51:08,828 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2019-11-28 02:51:08,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:51:08,829 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:51:08,829 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:51:09,035 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:51:09,036 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:51:09,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:51:09,037 INFO L82 PathProgramCache]: Analyzing trace with hash -22254561, now seen corresponding path program 1 times [2019-11-28 02:51:09,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:51:09,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480162708] [2019-11-28 02:51:09,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:51:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:09,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:09,148 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480162708] [2019-11-28 02:51:09,148 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490083521] [2019-11-28 02:51:09,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-28 02:51:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:09,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:51:09,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:51:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:09,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 02:51:09,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2019-11-28 02:51:09,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4994302] [2019-11-28 02:51:09,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:51:09,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:51:09,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:51:09,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-28 02:51:09,233 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand 5 states. [2019-11-28 02:51:09,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:51:09,274 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2019-11-28 02:51:09,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:51:09,276 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 02:51:09,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:51:09,277 INFO L225 Difference]: With dead ends: 31 [2019-11-28 02:51:09,278 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 02:51:09,278 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-28 02:51:09,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 02:51:09,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2019-11-28 02:51:09,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 02:51:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-28 02:51:09,290 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 9 [2019-11-28 02:51:09,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:51:09,290 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-28 02:51:09,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:51:09,290 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-28 02:51:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:51:09,292 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:51:09,292 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-28 02:51:09,493 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:51:09,493 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:51:09,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:51:09,494 INFO L82 PathProgramCache]: Analyzing trace with hash -22254369, now seen corresponding path program 1 times [2019-11-28 02:51:09,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:51:09,495 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902459567] [2019-11-28 02:51:09,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:51:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:09,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:09,535 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902459567] [2019-11-28 02:51:09,535 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967718141] [2019-11-28 02:51:09,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:51:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:09,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:51:09,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:51:09,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:09,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 02:51:09,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2019-11-28 02:51:09,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522329894] [2019-11-28 02:51:09,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:51:09,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:51:09,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:51:09,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:51:09,601 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 5 states. [2019-11-28 02:51:09,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:51:09,671 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2019-11-28 02:51:09,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:51:09,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 02:51:09,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:51:09,673 INFO L225 Difference]: With dead ends: 43 [2019-11-28 02:51:09,673 INFO L226 Difference]: Without dead ends: 42 [2019-11-28 02:51:09,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:51:09,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-28 02:51:09,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 20. [2019-11-28 02:51:09,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 02:51:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2019-11-28 02:51:09,679 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 9 [2019-11-28 02:51:09,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:51:09,679 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-11-28 02:51:09,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:51:09,680 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-11-28 02:51:09,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 02:51:09,680 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:51:09,681 INFO L410 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-28 02:51:09,881 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:51:09,882 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:51:09,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:51:09,882 INFO L82 PathProgramCache]: Analyzing trace with hash -573512235, now seen corresponding path program 1 times [2019-11-28 02:51:09,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:51:09,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550204689] [2019-11-28 02:51:09,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:51:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:09,970 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550204689] [2019-11-28 02:51:09,970 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785823606] [2019-11-28 02:51:09,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:51:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:09,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 02:51:10,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:51:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:10,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:51:10,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-11-28 02:51:10,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240492985] [2019-11-28 02:51:10,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 02:51:10,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:51:10,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 02:51:10,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-28 02:51:10,058 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 10 states. [2019-11-28 02:51:10,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:51:10,389 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2019-11-28 02:51:10,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-28 02:51:10,394 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-28 02:51:10,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:51:10,395 INFO L225 Difference]: With dead ends: 35 [2019-11-28 02:51:10,395 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 02:51:10,396 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2019-11-28 02:51:10,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 02:51:10,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 02:51:10,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 02:51:10,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 02:51:10,397 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-28 02:51:10,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:51:10,397 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:51:10,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 02:51:10,397 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:51:10,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:51:10,601 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:51:10,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 02:51:10,761 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-11-28 02:51:10,762 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 02:51:10,762 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-28 02:51:10,762 INFO L242 CegarLoopResult]: At program point L27(lines 14 28) the Hoare annotation is: (or (<= ULTIMATE.start_main_~y1~0 2147483647) (<= ULTIMATE.start_main_~y1~0 (+ ULTIMATE.start_main_~y2~0 2147483646))) [2019-11-28 02:51:10,762 INFO L246 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-28 02:51:10,762 INFO L246 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-11-28 02:51:10,763 INFO L246 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2019-11-28 02:51:10,763 INFO L246 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2019-11-28 02:51:10,763 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-11-28 02:51:10,763 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-28 02:51:10,763 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 02:51:10,763 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 02:51:10,763 INFO L246 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2019-11-28 02:51:10,764 INFO L246 CegarLoopResult]: For program point L18(lines 18 26) no Hoare annotation was computed. [2019-11-28 02:51:10,764 INFO L242 CegarLoopResult]: At program point L20-2(lines 19 25) the Hoare annotation is: (and (< 0 ULTIMATE.start_main_~y1~0) (<= ULTIMATE.start_main_~y1~0 2147483647) (<= ULTIMATE.start_main_~y2~0 2147483647) (<= 0 ULTIMATE.start_main_~y2~0)) [2019-11-28 02:51:10,764 INFO L246 CegarLoopResult]: For program point L18-1(lines 18 26) no Hoare annotation was computed. [2019-11-28 02:51:10,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:51:10 BoogieIcfgContainer [2019-11-28 02:51:10,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:51:10,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:51:10,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:51:10,785 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:51:10,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:51:07" (3/4) ... [2019-11-28 02:51:10,790 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:51:10,803 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 02:51:10,804 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 02:51:10,848 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:51:10,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:51:10,851 INFO L168 Benchmark]: Toolchain (without parser) took 4247.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 956.3 MB in the beginning and 894.1 MB in the end (delta: 62.3 MB). Peak memory consumption was 209.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:10,852 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:51:10,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.24 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:10,853 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.23 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:51:10,854 INFO L168 Benchmark]: Boogie Preprocessor took 78.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:10,855 INFO L168 Benchmark]: RCFGBuilder took 242.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:10,856 INFO L168 Benchmark]: TraceAbstraction took 3555.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 900.7 MB in the end (delta: 225.0 MB). Peak memory consumption was 225.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:10,856 INFO L168 Benchmark]: Witness Printer took 64.90 ms. Allocated memory is still 1.2 GB. Free memory was 900.7 MB in the beginning and 894.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:10,860 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.24 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.23 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 242.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3555.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 900.7 MB in the end (delta: 225.0 MB). Peak memory consumption was 225.0 MB. Max. memory is 11.5 GB. * Witness Printer took 64.90 ms. Allocated memory is still 1.2 GB. Free memory was 900.7 MB in the beginning and 894.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: 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: 23]: 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 4 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: y1 <= 2147483647 || y1 <= y2 + 2147483646 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((0 < y1 && y1 <= 2147483647) && y2 <= 2147483647) && 0 <= y2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Result: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 14 SDtfs, 160 SDslu, 6 SDs, 0 SdLazy, 369 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=4, 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, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 10 NumberOfFragments, 22 HoareAnnotationTreeSize, 2 FomulaSimplifications, 356 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 84 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 6328 SizeOfPredicates, 0 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 13/50 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...