java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/reducercommutativity/avg.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:22:12,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:22:12,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:22:12,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:22:12,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:22:12,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:22:12,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:22:12,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:22:12,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:22:12,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:22:12,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:22:12,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:22:12,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:22:12,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:22:12,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:22:12,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:22:12,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:22:12,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:22:12,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:22:12,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:22:12,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:22:12,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:22:12,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:22:12,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:22:12,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:22:12,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:22:12,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:22:12,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:22:12,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:22:12,322 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:22:12,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:22:12,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:22:12,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:22:12,325 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:22:12,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:22:12,326 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:22:12,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:22:12,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:22:12,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:22:12,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:22:12,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:22:12,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:22:12,327 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:22:12,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:22:12,327 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:22:12,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:22:12,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:22:12,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:22:12,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:22:12,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:22:12,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:22:12,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:22:12,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:22:12,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:22:12,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:22:12,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:22:12,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:22:12,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:22:12,602 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:22:12,615 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:22:12,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:22:12,620 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:22:12,620 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:22:12,621 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/avg.i [2019-10-15 01:22:12,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e62bcb7a/af97d6fb9ead4b23935ec0f561c39a99/FLAG81819ad4f [2019-10-15 01:22:13,163 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:22:13,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/avg.i [2019-10-15 01:22:13,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e62bcb7a/af97d6fb9ead4b23935ec0f561c39a99/FLAG81819ad4f [2019-10-15 01:22:13,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e62bcb7a/af97d6fb9ead4b23935ec0f561c39a99 [2019-10-15 01:22:13,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:22:13,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:22:13,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:22:13,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:22:13,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:22:13,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:22:13" (1/1) ... [2019-10-15 01:22:13,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd9dbad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:22:13, skipping insertion in model container [2019-10-15 01:22:13,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:22:13" (1/1) ... [2019-10-15 01:22:13,530 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:22:13,550 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:22:13,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:22:13,768 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:22:13,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:22:13,804 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:22:13,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:22:13 WrapperNode [2019-10-15 01:22:13,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:22:13,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:22:13,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:22:13,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:22:13,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:22:13" (1/1) ... [2019-10-15 01:22:13,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:22:13" (1/1) ... [2019-10-15 01:22:13,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:22:13" (1/1) ... [2019-10-15 01:22:13,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:22:13" (1/1) ... [2019-10-15 01:22:13,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:22:13" (1/1) ... [2019-10-15 01:22:13,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:22:13" (1/1) ... [2019-10-15 01:22:13,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:22:13" (1/1) ... [2019-10-15 01:22:13,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:22:13,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:22:13,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:22:13,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:22:13,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:22:13" (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 [2019-10-15 01:22:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:22:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:22:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure avg [2019-10-15 01:22:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:22:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:22:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:22:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure avg [2019-10-15 01:22:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:22:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:22:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:22:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:22:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:22:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:22:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:22:14,294 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:22:14,295 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 01:22:14,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:22:14 BoogieIcfgContainer [2019-10-15 01:22:14,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:22:14,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:22:14,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:22:14,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:22:14,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:22:13" (1/3) ... [2019-10-15 01:22:14,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7707bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:22:14, skipping insertion in model container [2019-10-15 01:22:14,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:22:13" (2/3) ... [2019-10-15 01:22:14,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7707bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:22:14, skipping insertion in model container [2019-10-15 01:22:14,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:22:14" (3/3) ... [2019-10-15 01:22:14,304 INFO L109 eAbstractionObserver]: Analyzing ICFG avg.i [2019-10-15 01:22:14,311 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:22:14,318 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:22:14,328 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:22:14,353 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:22:14,353 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:22:14,354 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:22:14,354 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:22:14,354 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:22:14,354 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:22:14,354 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:22:14,354 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:22:14,372 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-10-15 01:22:14,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-15 01:22:14,379 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:22:14,380 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:22:14,382 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:22:14,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:22:14,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1931873834, now seen corresponding path program 1 times [2019-10-15 01:22:14,394 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:22:14,394 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479964511] [2019-10-15 01:22:14,395 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:22:14,395 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:22:14,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:22:14,490 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 01:22:14,490 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [374915972] [2019-10-15 01:22:14,491 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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:22:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:22:14,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 01:22:14,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:22:14,665 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-15 01:22:14,665 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:22:14,773 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-15 01:22:14,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479964511] [2019-10-15 01:22:14,774 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 01:22:14,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374915972] [2019-10-15 01:22:14,775 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:22:14,775 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2019-10-15 01:22:14,776 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526418272] [2019-10-15 01:22:14,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:22:14,782 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:22:14,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:22:14,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:22:14,801 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 4 states. [2019-10-15 01:22:14,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:22:14,904 INFO L93 Difference]: Finished difference Result 61 states and 77 transitions. [2019-10-15 01:22:14,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:22:14,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-10-15 01:22:14,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:22:14,917 INFO L225 Difference]: With dead ends: 61 [2019-10-15 01:22:14,917 INFO L226 Difference]: Without dead ends: 27 [2019-10-15 01:22:14,921 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:22:14,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-15 01:22:14,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-10-15 01:22:14,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-15 01:22:14,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2019-10-15 01:22:14,970 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 32 [2019-10-15 01:22:14,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:22:14,971 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2019-10-15 01:22:14,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:22:14,971 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-10-15 01:22:14,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-15 01:22:14,974 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:22:14,974 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:22:15,179 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:22:15,179 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:22:15,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:22:15,180 INFO L82 PathProgramCache]: Analyzing trace with hash -334011672, now seen corresponding path program 1 times [2019-10-15 01:22:15,180 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:22:15,181 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124084868] [2019-10-15 01:22:15,182 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:22:15,182 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:22:15,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:22:15,217 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 01:22:15,217 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [524709698] [2019-10-15 01:22:15,218 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 [2019-10-15 01:22:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:22:15,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:22:15,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:22:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-15 01:22:15,327 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:22:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 01:22:15,441 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124084868] [2019-10-15 01:22:15,441 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 01:22:15,442 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524709698] [2019-10-15 01:22:15,442 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1053871968] [2019-10-15 01:22:15,449 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 39 [2019-10-15 01:22:15,488 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:22:15,488 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:22:15,567 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:22:15,569 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 2. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 28 variables. [2019-10-15 01:22:15,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:22:15,573 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:22:15,620 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96.67% of their original sizes. [2019-10-15 01:22:15,623 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:22:15,640 INFO L553 sIntCurrentIteration]: We unified 37 AI predicates to 37 [2019-10-15 01:22:15,641 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:22:15,642 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:22:15,642 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 6] total 9 [2019-10-15 01:22:15,643 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900414173] [2019-10-15 01:22:15,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:22:15,647 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:22:15,647 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:22:15,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:22:15,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:22:15,649 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 3 states. [2019-10-15 01:22:15,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:22:15,657 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-10-15 01:22:15,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:22:15,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-10-15 01:22:15,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:22:15,659 INFO L225 Difference]: With dead ends: 26 [2019-10-15 01:22:15,659 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:22:15,661 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:22:15,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:22:15,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:22:15,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:22:15,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:22:15,667 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2019-10-15 01:22:15,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:22:15,668 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:22:15,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:22:15,668 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:22:15,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:22:15,875 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:22:15,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:22:15,940 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:22:15,940 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:22:15,940 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:22:15,941 INFO L443 ceAbstractionStarter]: For program point avgEXIT(lines 6 15) no Hoare annotation was computed. [2019-10-15 01:22:15,941 INFO L443 ceAbstractionStarter]: For program point avgFINAL(lines 6 15) no Hoare annotation was computed. [2019-10-15 01:22:15,941 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2019-10-15 01:22:15,941 INFO L446 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: true [2019-10-15 01:22:15,941 INFO L443 ceAbstractionStarter]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2019-10-15 01:22:15,941 INFO L446 ceAbstractionStarter]: At program point avgENTRY(lines 6 15) the Hoare annotation is: true [2019-10-15 01:22:15,941 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:22:15,942 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~N~0 2147483647) (<= 0 (+ ~N~0 2147483648))) [2019-10-15 01:22:15,942 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:22:15,942 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:22:15,942 INFO L439 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648)))) [2019-10-15 01:22:15,942 INFO L443 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-10-15 01:22:15,943 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 17 43) no Hoare annotation was computed. [2019-10-15 01:22:15,943 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2019-10-15 01:22:15,943 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 17 43) no Hoare annotation was computed. [2019-10-15 01:22:15,944 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 40) no Hoare annotation was computed. [2019-10-15 01:22:15,944 INFO L439 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648)))) [2019-10-15 01:22:15,945 INFO L443 ceAbstractionStarter]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2019-10-15 01:22:15,945 INFO L443 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2019-10-15 01:22:15,945 INFO L439 ceAbstractionStarter]: At program point L30(line 30) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648)))) [2019-10-15 01:22:15,945 INFO L443 ceAbstractionStarter]: For program point L32-2(lines 32 34) no Hoare annotation was computed. [2019-10-15 01:22:15,946 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 17 43) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648))) (and (<= ~N~0 2147483647) (<= 0 (+ ~N~0 2147483648)))) [2019-10-15 01:22:15,946 INFO L443 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-10-15 01:22:15,946 INFO L439 ceAbstractionStarter]: At program point L32-3(lines 32 34) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648)))) [2019-10-15 01:22:15,946 INFO L443 ceAbstractionStarter]: For program point L32-4(lines 32 34) no Hoare annotation was computed. [2019-10-15 01:22:15,946 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 41) no Hoare annotation was computed. [2019-10-15 01:22:15,946 INFO L443 ceAbstractionStarter]: For program point L20-2(lines 20 41) no Hoare annotation was computed. [2019-10-15 01:22:15,946 INFO L443 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2019-10-15 01:22:15,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:22:15 BoogieIcfgContainer [2019-10-15 01:22:15,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:22:15,965 INFO L168 Benchmark]: Toolchain (without parser) took 2447.65 ms. Allocated memory was 139.5 MB in the beginning and 233.8 MB in the end (delta: 94.4 MB). Free memory was 103.4 MB in the beginning and 179.9 MB in the end (delta: -76.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:22:15,967 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-15 01:22:15,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.25 ms. Allocated memory is still 139.5 MB. Free memory was 103.2 MB in the beginning and 93.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:22:15,970 INFO L168 Benchmark]: Boogie Preprocessor took 120.61 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 93.0 MB in the beginning and 180.5 MB in the end (delta: -87.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:22:15,971 INFO L168 Benchmark]: RCFGBuilder took 370.28 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 164.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:22:15,978 INFO L168 Benchmark]: TraceAbstraction took 1663.32 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 164.4 MB in the beginning and 179.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:22:15,989 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.25 ms. Allocated memory is still 139.5 MB. Free memory was 103.2 MB in the beginning and 93.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.61 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 93.0 MB in the beginning and 180.5 MB in the end (delta: -87.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 370.28 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 164.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1663.32 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 164.4 MB in the beginning and 179.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 39]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: !(\old(N) <= 2147483647) || !(0 <= \old(N) + 2147483648) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 30 SDslu, 29 SDs, 0 SdLazy, 28 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 18 NumberOfFragments, 77 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 7328 SizeOfPredicates, 3 NumberOfNonLiveVariables, 281 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 64/90 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 125, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9684684684684683, AVG_VARS_REMOVED_DURING_WEAKENING: 1.3243243243243243, AVG_WEAKENED_CONJUNCTS: 0.43243243243243246, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...