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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-multidimensional/min-3-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 05:36:01,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 05:36:01,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 05:36:01,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-09 05:36:01,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 05:36:01,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 05:36:01,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 05:36:01,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 05:36:01,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 05:36:01,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 05:36:01,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 05:36:01,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 05:36:01,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 05:36:01,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 05:36:01,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 05:36:01,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 05:36:01,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-09 05:36:01,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 05:36:01,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 05:36:01,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 05:36:01,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-09 05:36:01,181 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 05:36:01,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 05:36:01,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 05:36:01,182 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 05:36:01,183 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 05:36:01,183 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 05:36:01,183 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 05:36:01,183 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 05:36:01,183 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 05:36:01,184 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 05:36:01,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 05:36:01,185 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 05:36:01,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 05:36:01,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 05:36:01,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 05:36:01,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 05:36:01,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 05:36:01,186 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 05:36:01,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 05:36:01,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 05:36:01,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 05:36:01,187 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 05:36:01,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 05:36:01,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:36:01,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 05:36:01,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 05:36:01,188 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 05:36:01,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 05:36:01,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 05:36:01,188 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 05:36:01,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 05:36:01,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 05:36:01,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 05:36:01,238 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 05:36:01,238 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 05:36:01,239 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/min-3-n-u.c [2019-09-09 05:36:01,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18bad222b/edc3b767137446c097fdb557063080f7/FLAG1d3dd782a [2019-09-09 05:36:01,852 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 05:36:01,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/min-3-n-u.c [2019-09-09 05:36:01,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18bad222b/edc3b767137446c097fdb557063080f7/FLAG1d3dd782a [2019-09-09 05:36:02,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18bad222b/edc3b767137446c097fdb557063080f7 [2019-09-09 05:36:02,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 05:36:02,227 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 05:36:02,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 05:36:02,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 05:36:02,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 05:36:02,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:36:02" (1/1) ... [2019-09-09 05:36:02,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45cd0495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:36:02, skipping insertion in model container [2019-09-09 05:36:02,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:36:02" (1/1) ... [2019-09-09 05:36:02,245 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 05:36:02,270 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 05:36:02,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:36:02,471 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 05:36:02,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:36:02,519 INFO L192 MainTranslator]: Completed translation [2019-09-09 05:36:02,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:36:02 WrapperNode [2019-09-09 05:36:02,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 05:36:02,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 05:36:02,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 05:36:02,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 05:36:02,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:36:02" (1/1) ... [2019-09-09 05:36:02,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:36:02" (1/1) ... [2019-09-09 05:36:02,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:36:02" (1/1) ... [2019-09-09 05:36:02,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:36:02" (1/1) ... [2019-09-09 05:36:02,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:36:02" (1/1) ... [2019-09-09 05:36:02,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:36:02" (1/1) ... [2019-09-09 05:36:02,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:36:02" (1/1) ... [2019-09-09 05:36:02,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 05:36:02,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 05:36:02,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 05:36:02,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 05:36:02,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:36:02" (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 [2019-09-09 05:36:02,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 05:36:02,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 05:36:02,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-09 05:36:02,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 05:36:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 05:36:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-09 05:36:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 05:36:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 05:36:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-09 05:36:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-09 05:36:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-09 05:36:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-09 05:36:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 05:36:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 05:36:03,031 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 05:36:03,031 INFO L283 CfgBuilder]: Removed 9 assume(true) statements. [2019-09-09 05:36:03,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:36:03 BoogieIcfgContainer [2019-09-09 05:36:03,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 05:36:03,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 05:36:03,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 05:36:03,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 05:36:03,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 05:36:02" (1/3) ... [2019-09-09 05:36:03,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a5e480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:36:03, skipping insertion in model container [2019-09-09 05:36:03,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:36:02" (2/3) ... [2019-09-09 05:36:03,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a5e480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:36:03, skipping insertion in model container [2019-09-09 05:36:03,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:36:03" (3/3) ... [2019-09-09 05:36:03,043 INFO L109 eAbstractionObserver]: Analyzing ICFG min-3-n-u.c [2019-09-09 05:36:03,056 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 05:36:03,091 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 05:36:03,129 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 05:36:03,162 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 05:36:03,162 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 05:36:03,163 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 05:36:03,163 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 05:36:03,163 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 05:36:03,164 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 05:36:03,164 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 05:36:03,164 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 05:36:03,182 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-09-09 05:36:03,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-09 05:36:03,192 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:36:03,193 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:36:03,195 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:36:03,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:36:03,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1187401570, now seen corresponding path program 1 times [2019-09-09 05:36:03,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:36:03,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:36:03,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:36:03,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:36:03,257 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:36:03,297 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-09 05:36:03,297 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-09 05:36:03,298 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG 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 [2019-09-09 05:36:03,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:36:03,316 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-09 05:36:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:36:03,347 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-09 05:36:03,350 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-09 05:36:03,350 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:36:03,351 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-09 05:36:03,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:36:03,372 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-09 05:36:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:36:03,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjunts are in the unsatisfiable core [2019-09-09 05:36:03,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-09 05:36:03,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:36:03,436 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-09 05:36:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:36:03,465 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:36:03,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-09-09 05:36:03,466 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:36:03,473 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:36:03,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:36:03,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:36:03,493 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-09-09 05:36:03,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:36:03,518 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2019-09-09 05:36:03,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:36:03,520 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-09-09 05:36:03,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:36:03,530 INFO L225 Difference]: With dead ends: 38 [2019-09-09 05:36:03,531 INFO L226 Difference]: Without dead ends: 33 [2019-09-09 05:36:03,533 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:36:03,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-09-09 05:36:03,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-09-09 05:36:03,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-09-09 05:36:03,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2019-09-09 05:36:03,569 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 17 [2019-09-09 05:36:03,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:36:03,570 INFO L475 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2019-09-09 05:36:03,570 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:36:03,570 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2019-09-09 05:36:03,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-09 05:36:03,571 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:36:03,571 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:36:03,572 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:36:03,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:36:03,573 INFO L82 PathProgramCache]: Analyzing trace with hash -738632508, now seen corresponding path program 1 times [2019-09-09 05:36:03,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:36:03,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:36:03,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:36:03,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:36:03,575 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:36:03,582 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-09 05:36:03,583 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-09 05:36:03,583 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-09 05:36:03,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:36:03,602 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-09 05:36:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:36:03,628 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-09 05:36:03,629 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-09 05:36:03,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:36:03,629 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-09 05:36:03,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:36:03,647 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-09 05:36:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:36:03,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-09 05:36:03,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-09 05:36:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:36:03,720 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-09 05:36:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:36:03,740 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:36:03,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-09-09 05:36:03,741 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:36:03,742 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:36:03,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:36:03,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:36:03,743 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand 3 states. [2019-09-09 05:36:03,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:36:03,792 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2019-09-09 05:36:03,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:36:03,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-09-09 05:36:03,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:36:03,794 INFO L225 Difference]: With dead ends: 38 [2019-09-09 05:36:03,794 INFO L226 Difference]: Without dead ends: 38 [2019-09-09 05:36:03,796 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:36:03,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-09-09 05:36:03,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2019-09-09 05:36:03,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-09 05:36:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2019-09-09 05:36:03,803 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 17 [2019-09-09 05:36:03,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:36:03,803 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2019-09-09 05:36:03,803 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:36:03,803 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2019-09-09 05:36:03,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-09 05:36:03,804 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:36:03,804 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:36:03,805 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:36:03,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:36:03,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1951122805, now seen corresponding path program 1 times [2019-09-09 05:36:03,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:36:03,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:36:03,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:36:03,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:36:03,807 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:36:03,814 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-09 05:36:03,815 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-09 05:36:03,815 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG 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 [2019-09-09 05:36:03,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:36:03,835 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-09 05:36:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:36:03,853 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2019-09-09 05:36:03,856 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [12], [14], [21], [40], [44], [51], [90], [99], [108], [117], [133], [136], [138], [144], [145], [146], [148] [2019-09-09 05:36:03,899 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 05:36:03,900 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 05:36:03,983 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 05:36:03,985 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 18 root evaluator evaluations with a maximum evaluation depth of 0. Performed 18 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 23 variables. [2019-09-09 05:36:03,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:36:03,990 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 05:36:04,033 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-09 05:36:04,033 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-09 05:36:04,035 INFO L420 sIntCurrentIteration]: We unified 19 AI predicates to 19 [2019-09-09 05:36:04,036 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-09 05:36:04,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:36:04,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-09 05:36:04,037 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:36:04,038 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:36:04,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:36:04,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:36:04,039 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand 2 states. [2019-09-09 05:36:04,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:36:04,040 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-09 05:36:04,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:36:04,040 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-09-09 05:36:04,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:36:04,041 INFO L225 Difference]: With dead ends: 6 [2019-09-09 05:36:04,041 INFO L226 Difference]: Without dead ends: 0 [2019-09-09 05:36:04,041 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:36:04,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-09 05:36:04,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-09 05:36:04,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-09 05:36:04,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-09 05:36:04,043 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-09-09 05:36:04,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:36:04,043 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-09 05:36:04,043 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:36:04,043 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-09 05:36:04,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-09 05:36:04,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 05:36:04 BoogieIcfgContainer [2019-09-09 05:36:04,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 05:36:04,053 INFO L168 Benchmark]: Toolchain (without parser) took 1827.76 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 88.2 MB in the beginning and 91.9 MB in the end (delta: -3.7 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. [2019-09-09 05:36:04,054 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-09 05:36:04,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.32 ms. Allocated memory is still 132.1 MB. Free memory was 88.0 MB in the beginning and 77.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-09 05:36:04,056 INFO L168 Benchmark]: Boogie Preprocessor took 135.00 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 77.2 MB in the beginning and 174.4 MB in the end (delta: -97.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-09-09 05:36:04,057 INFO L168 Benchmark]: RCFGBuilder took 377.67 ms. Allocated memory is still 198.7 MB. Free memory was 174.4 MB in the beginning and 156.6 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2019-09-09 05:36:04,058 INFO L168 Benchmark]: TraceAbstraction took 1015.88 ms. Allocated memory is still 198.7 MB. Free memory was 156.0 MB in the beginning and 91.9 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. [2019-09-09 05:36:04,063 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 291.32 ms. Allocated memory is still 132.1 MB. Free memory was 88.0 MB in the beginning and 77.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.00 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 77.2 MB in the beginning and 174.4 MB in the end (delta: -97.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 377.67 ms. Allocated memory is still 198.7 MB. Free memory was 174.4 MB in the beginning and 156.6 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1015.88 ms. Allocated memory is still 198.7 MB. Free memory was 156.0 MB in the beginning and 91.9 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 38 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 91 SDtfs, 6 SDslu, 27 SDs, 0 SdLazy, 17 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.881578947368421 AbsIntWeakeningRatio, 1.4210526315789473 AbsIntAvgWeakeningVarsNumRemoved, 0.3157894736842105 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 1152 SizeOfPredicates, 2 NumberOfNonLiveVariables, 166 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...