/usr/bin/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/nla-digbench/geo2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:36:32,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:36:32,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:36:32,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:36:32,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:36:32,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:36:32,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:36:32,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:36:32,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:36:32,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:36:32,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:36:32,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-11-07 00:36:32,946 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 [2019-11-07 00:36:32,978 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:36:32,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:36:32,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:36:32,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:36:32,983 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:36:32,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:36:32,983 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:36:32,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:36:32,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:36:32,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:36:32,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:36:32,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:36:32,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:36:32,985 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:36:32,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:36:32,985 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:36:32,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:36:32,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:36:32,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:36:32,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:36:32,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:36:32,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:36:32,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:36:32,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:36:32,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:36:32,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:36:32,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:36:32,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:36:32,988 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 [2019-11-07 00:36:33,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:36:33,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:36:33,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:36:33,299 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:36:33,300 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:36:33,300 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo2.c [2019-11-07 00:36:33,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41c9ed4e9/d0fd7b3af48b4d2f9d59e0025348d1ff/FLAG227c1f232 [2019-11-07 00:36:33,825 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:36:33,825 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo2.c [2019-11-07 00:36:33,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41c9ed4e9/d0fd7b3af48b4d2f9d59e0025348d1ff/FLAG227c1f232 [2019-11-07 00:36:34,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41c9ed4e9/d0fd7b3af48b4d2f9d59e0025348d1ff [2019-11-07 00:36:34,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:36:34,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:36:34,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:36:34,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:36:34,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:36:34,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:36:34" (1/1) ... [2019-11-07 00:36:34,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d89586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:34, skipping insertion in model container [2019-11-07 00:36:34,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:36:34" (1/1) ... [2019-11-07 00:36:34,321 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:36:34,360 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:36:34,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:36:34,661 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:36:34,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:36:34,699 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:36:34,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:34 WrapperNode [2019-11-07 00:36:34,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:36:34,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:36:34,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:36:34,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:36:34,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:34" (1/1) ... [2019-11-07 00:36:34,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:34" (1/1) ... [2019-11-07 00:36:34,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:34" (1/1) ... [2019-11-07 00:36:34,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:34" (1/1) ... [2019-11-07 00:36:34,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:34" (1/1) ... [2019-11-07 00:36:34,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:34" (1/1) ... [2019-11-07 00:36:34,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:34" (1/1) ... [2019-11-07 00:36:34,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:36:34,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:36:34,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:36:34,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:36:34,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:34" (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 [2019-11-07 00:36:34,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:36:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:36:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 00:36:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:36:34,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:36:34,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:36:34,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 00:36:34,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 00:36:34,863 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:36:34,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:36:34,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:36:35,022 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:36:35,023 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 00:36:35,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:36:35 BoogieIcfgContainer [2019-11-07 00:36:35,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:36:35,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:36:35,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:36:35,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:36:35,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:36:34" (1/3) ... [2019-11-07 00:36:35,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566d3131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:36:35, skipping insertion in model container [2019-11-07 00:36:35,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:34" (2/3) ... [2019-11-07 00:36:35,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566d3131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:36:35, skipping insertion in model container [2019-11-07 00:36:35,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:36:35" (3/3) ... [2019-11-07 00:36:35,032 INFO L109 eAbstractionObserver]: Analyzing ICFG geo2.c [2019-11-07 00:36:35,041 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:36:35,048 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:36:35,058 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:36:35,081 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:36:35,082 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:36:35,082 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:36:35,082 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:36:35,082 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:36:35,082 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:36:35,083 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:36:35,083 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:36:35,098 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-07 00:36:35,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-07 00:36:35,102 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:36:35,103 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:36:35,104 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:36:35,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:36:35,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1712389503, now seen corresponding path program 1 times [2019-11-07 00:36:35,117 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:36:35,118 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6663143] [2019-11-07 00:36:35,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:36:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:36:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:36:35,209 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6663143] [2019-11-07 00:36:35,209 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:36:35,210 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:36:35,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881737639] [2019-11-07 00:36:35,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:36:35,215 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:36:35,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:36:35,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:36:35,228 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-07 00:36:35,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:36:35,249 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2019-11-07 00:36:35,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:36:35,251 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-07 00:36:35,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:36:35,260 INFO L225 Difference]: With dead ends: 35 [2019-11-07 00:36:35,261 INFO L226 Difference]: Without dead ends: 15 [2019-11-07 00:36:35,264 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:36:35,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-07 00:36:35,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-07 00:36:35,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-07 00:36:35,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-11-07 00:36:35,296 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2019-11-07 00:36:35,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:36:35,297 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-11-07 00:36:35,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:36:35,297 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-11-07 00:36:35,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-07 00:36:35,298 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:36:35,298 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:36:35,298 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:36:35,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:36:35,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1704941753, now seen corresponding path program 1 times [2019-11-07 00:36:35,299 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:36:35,300 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792213772] [2019-11-07 00:36:35,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:36:35,307 ERROR L268 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-07 00:36:35,308 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773593124] [2019-11-07 00:36:35,308 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 [2019-11-07 00:36:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:36:35,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-07 00:36:35,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:36:35,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:36:35,434 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:36:35,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:36:35,527 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792213772] [2019-11-07 00:36:35,527 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-07 00:36:35,527 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773593124] [2019-11-07 00:36:35,527 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:36:35,528 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-07 00:36:35,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872023763] [2019-11-07 00:36:35,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:36:35,530 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:36:35,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:36:35,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:36:35,531 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 7 states. [2019-11-07 00:36:35,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:36:35,617 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-11-07 00:36:35,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 00:36:35,618 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-11-07 00:36:35,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:36:35,619 INFO L225 Difference]: With dead ends: 25 [2019-11-07 00:36:35,619 INFO L226 Difference]: Without dead ends: 22 [2019-11-07 00:36:35,620 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:36:35,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-07 00:36:35,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-07 00:36:35,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-07 00:36:35,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-11-07 00:36:35,627 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2019-11-07 00:36:35,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:36:35,628 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-11-07 00:36:35,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:36:35,628 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-11-07 00:36:35,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-07 00:36:35,629 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:36:35,629 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:36:35,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:36:35,833 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:36:35,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:36:35,834 INFO L82 PathProgramCache]: Analyzing trace with hash 241116926, now seen corresponding path program 1 times [2019-11-07 00:36:35,835 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:36:35,835 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026910750] [2019-11-07 00:36:35,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:36:35,842 ERROR L268 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-07 00:36:35,842 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703644400] [2019-11-07 00:36:35,843 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 [2019-11-07 00:36:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:36:35,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-07 00:36:35,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:36:35,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:36:36,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:36:36,014 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:36:36,116 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:36:36,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:36:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:36:36,156 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026910750] [2019-11-07 00:36:36,156 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-07 00:36:36,156 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703644400] [2019-11-07 00:36:36,157 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [2099739915] [2019-11-07 00:36:36,163 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18 [2019-11-07 00:36:36,213 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:36:36,214 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:36:36,542 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 00:36:36,544 INFO L272 AbstractInterpreter]: Visited 14 different actions 59 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Performed 101 root evaluator evaluations with a maximum evaluation depth of 11. Performed 101 inverse root evaluator evaluations with a maximum inverse evaluation depth of 11. Found 1 fixpoints after 1 different actions. Largest state had 7 variables. [2019-11-07 00:36:36,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:36:36,549 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-07 00:36:36,549 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:36:36,549 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2019-11-07 00:36:36,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139908927] [2019-11-07 00:36:36,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-07 00:36:36,550 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:36:36,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-07 00:36:36,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:36:36,551 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 13 states. [2019-11-07 00:36:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:36:36,642 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-11-07 00:36:36,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:36:36,643 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 17 [2019-11-07 00:36:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:36:36,643 INFO L225 Difference]: With dead ends: 26 [2019-11-07 00:36:36,644 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:36:36,645 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2019-11-07 00:36:36,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:36:36,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:36:36,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:36:36,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:36:36,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-07 00:36:36,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:36:36,646 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:36:36,646 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-07 00:36:36,646 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:36:36,646 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:36:36,847 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:36:36,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:36:36,924 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-11-07 00:36:36,925 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:36:36,925 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:36:36,925 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:36:36,925 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:36:36,925 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:36:36,925 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 18 40) the Hoare annotation is: true [2019-11-07 00:36:36,925 INFO L439 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: (= (+ main_~x~0 (* main_~z~0 main_~y~0)) (+ (* main_~x~0 main_~z~0) 1)) [2019-11-07 00:36:36,926 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 28 37) no Hoare annotation was computed. [2019-11-07 00:36:36,926 INFO L439 ceAbstractionStarter]: At program point L28-2(lines 28 37) the Hoare annotation is: (= (+ main_~x~0 (* main_~z~0 main_~y~0)) (+ (* main_~x~0 main_~z~0) 1)) [2019-11-07 00:36:36,926 INFO L439 ceAbstractionStarter]: At program point L28-3(lines 28 37) the Hoare annotation is: (= (+ main_~x~0 (* main_~z~0 main_~y~0)) (+ (* main_~x~0 main_~z~0) 1)) [2019-11-07 00:36:36,926 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 18 40) no Hoare annotation was computed. [2019-11-07 00:36:36,926 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 18 40) no Hoare annotation was computed. [2019-11-07 00:36:36,926 INFO L443 ceAbstractionStarter]: For program point L38(line 38) no Hoare annotation was computed. [2019-11-07 00:36:36,926 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-11-07 00:36:36,926 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2019-11-07 00:36:36,927 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 12) no Hoare annotation was computed. [2019-11-07 00:36:36,927 INFO L443 ceAbstractionStarter]: For program point L10(lines 10 13) no Hoare annotation was computed. [2019-11-07 00:36:36,927 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2019-11-07 00:36:36,927 INFO L443 ceAbstractionStarter]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2019-11-07 00:36:36,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:36:36 BoogieIcfgContainer [2019-11-07 00:36:36,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:36:36,940 INFO L168 Benchmark]: Toolchain (without parser) took 2662.14 ms. Allocated memory was 136.8 MB in the beginning and 229.6 MB in the end (delta: 92.8 MB). Free memory was 101.9 MB in the beginning and 167.8 MB in the end (delta: -65.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-11-07 00:36:36,941 INFO L168 Benchmark]: CDTParser took 1.15 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:36:36,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.06 ms. Allocated memory is still 136.8 MB. Free memory was 101.5 MB in the beginning and 92.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-11-07 00:36:36,943 INFO L168 Benchmark]: Boogie Preprocessor took 102.26 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 92.2 MB in the beginning and 178.0 MB in the end (delta: -85.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-11-07 00:36:36,944 INFO L168 Benchmark]: RCFGBuilder took 221.09 ms. Allocated memory is still 199.8 MB. Free memory was 178.0 MB in the beginning and 167.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-11-07 00:36:36,947 INFO L168 Benchmark]: TraceAbstraction took 1912.42 ms. Allocated memory was 199.8 MB in the beginning and 229.6 MB in the end (delta: 29.9 MB). Free memory was 166.4 MB in the beginning and 167.8 MB in the end (delta: -1.4 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2019-11-07 00:36:36,954 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 415.06 ms. Allocated memory is still 136.8 MB. Free memory was 101.5 MB in the beginning and 92.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.26 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 92.2 MB in the beginning and 178.0 MB in the end (delta: -85.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 221.09 ms. Allocated memory is still 199.8 MB. Free memory was 178.0 MB in the beginning and 167.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1912.42 ms. Allocated memory was 199.8 MB in the beginning and 229.6 MB in the end (delta: 29.9 MB). Free memory was 166.4 MB in the beginning and 167.8 MB in the end (delta: -1.4 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 28]: Loop Invariant Derived loop invariant: x + z * y == x * z + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 28 SDslu, 95 SDs, 0 SdLazy, 56 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 15 PreInvPairs, 24 NumberOfFragments, 38 HoareAnnotationTreeSize, 15 FomulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 64 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 59 ConstructedInterpolants, 2 QuantifiedInterpolants, 2965 SizeOfPredicates, 7 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 4/8 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...