/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/underapprox_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-27 21:58:59,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-27 21:58:59,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-27 21:58:59,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-27 21:58:59,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-27 21:58:59,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-27 21:58:59,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-27 21:58:59,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-27 21:58:59,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-27 21:58:59,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-27 21:58:59,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-27 21:58:59,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-27 21:58:59,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-27 21:58:59,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-27 21:58:59,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-27 21:58:59,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-27 21:58:59,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-27 21:58:59,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-27 21:58:59,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-27 21:58:59,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-27 21:58:59,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-27 21:58:59,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-27 21:58:59,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-27 21:58:59,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-27 21:58:59,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-27 21:58:59,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-27 21:58:59,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-27 21:58:59,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-27 21:58:59,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-27 21:58:59,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-27 21:58:59,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-27 21:58:59,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-27 21:58:59,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-27 21:58:59,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-27 21:58:59,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-27 21:58:59,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-27 21:58:59,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-27 21:58:59,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-27 21:58:59,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-27 21:58:59,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-27 21:58:59,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-27 21:58:59,294 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-27 21:58:59,335 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-27 21:58:59,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-27 21:58:59,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-27 21:58:59,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-27 21:58:59,338 INFO L138 SettingsManager]: * Use SBE=true [2020-08-27 21:58:59,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-27 21:58:59,339 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-27 21:58:59,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-27 21:58:59,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-27 21:58:59,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-27 21:58:59,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-27 21:58:59,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-27 21:58:59,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-27 21:58:59,341 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-27 21:58:59,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-27 21:58:59,342 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-27 21:58:59,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-27 21:58:59,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-27 21:58:59,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-27 21:58:59,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-27 21:58:59,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-27 21:58:59,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 21:58:59,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-27 21:58:59,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-27 21:58:59,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-27 21:58:59,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-27 21:58:59,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-27 21:58:59,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-27 21:58:59,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-27 21:58:59,345 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-27 21:58:59,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-27 21:58:59,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-27 21:58:59,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-27 21:58:59,844 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-27 21:58:59,844 INFO L275 PluginConnector]: CDTParser initialized [2020-08-27 21:58:59,846 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/underapprox_2-2.c [2020-08-27 21:58:59,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed80dc0f3/d7d3f814abd848f1bb0929869770e043/FLAG600806d6a [2020-08-27 21:59:00,444 INFO L306 CDTParser]: Found 1 translation units. [2020-08-27 21:59:00,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-acceleration/underapprox_2-2.c [2020-08-27 21:59:00,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed80dc0f3/d7d3f814abd848f1bb0929869770e043/FLAG600806d6a [2020-08-27 21:59:00,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed80dc0f3/d7d3f814abd848f1bb0929869770e043 [2020-08-27 21:59:00,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-27 21:59:00,806 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-27 21:59:00,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-27 21:59:00,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-27 21:59:00,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-27 21:59:00,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:59:00" (1/1) ... [2020-08-27 21:59:00,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc17a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:59:00, skipping insertion in model container [2020-08-27 21:59:00,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:59:00" (1/1) ... [2020-08-27 21:59:00,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-27 21:59:00,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-27 21:59:01,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:59:01,068 INFO L203 MainTranslator]: Completed pre-run [2020-08-27 21:59:01,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:59:01,098 INFO L208 MainTranslator]: Completed translation [2020-08-27 21:59:01,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:59:01 WrapperNode [2020-08-27 21:59:01,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-27 21:59:01,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-27 21:59:01,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-27 21:59:01,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-27 21:59:01,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:59:01" (1/1) ... [2020-08-27 21:59:01,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:59:01" (1/1) ... [2020-08-27 21:59:01,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:59:01" (1/1) ... [2020-08-27 21:59:01,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:59:01" (1/1) ... [2020-08-27 21:59:01,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:59:01" (1/1) ... [2020-08-27 21:59:01,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:59:01" (1/1) ... [2020-08-27 21:59:01,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:59:01" (1/1) ... [2020-08-27 21:59:01,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-27 21:59:01,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-27 21:59:01,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-27 21:59:01,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-27 21:59:01,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:59:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 21:59:01,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-27 21:59:01,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-27 21:59:01,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-27 21:59:01,299 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-27 21:59:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-27 21:59:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-27 21:59:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-27 21:59:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-27 21:59:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-27 21:59:01,492 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-27 21:59:01,492 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-27 21:59:01,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:59:01 BoogieIcfgContainer [2020-08-27 21:59:01,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-27 21:59:01,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-27 21:59:01,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-27 21:59:01,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-27 21:59:01,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 09:59:00" (1/3) ... [2020-08-27 21:59:01,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f01661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:59:01, skipping insertion in model container [2020-08-27 21:59:01,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:59:01" (2/3) ... [2020-08-27 21:59:01,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f01661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:59:01, skipping insertion in model container [2020-08-27 21:59:01,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:59:01" (3/3) ... [2020-08-27 21:59:01,506 INFO L109 eAbstractionObserver]: Analyzing ICFG underapprox_2-2.c [2020-08-27 21:59:01,516 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-27 21:59:01,524 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-27 21:59:01,543 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-27 21:59:01,571 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-27 21:59:01,571 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-27 21:59:01,571 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-27 21:59:01,571 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-27 21:59:01,571 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-27 21:59:01,572 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-27 21:59:01,572 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-27 21:59:01,572 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-27 21:59:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-08-27 21:59:01,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-27 21:59:01,596 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:59:01,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:59:01,598 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:59:01,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:59:01,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2020-08-27 21:59:01,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:59:01,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162771276] [2020-08-27 21:59:01,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:59:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:01,932 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 5 [2020-08-27 21:59:01,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:59:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:59:01,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162771276] [2020-08-27 21:59:01,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:59:01,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-27 21:59:01,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627096441] [2020-08-27 21:59:01,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-27 21:59:01,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:59:01,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-27 21:59:01,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-27 21:59:01,972 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-08-27 21:59:02,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:59:02,008 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2020-08-27 21:59:02,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-27 21:59:02,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-08-27 21:59:02,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:59:02,021 INFO L225 Difference]: With dead ends: 29 [2020-08-27 21:59:02,021 INFO L226 Difference]: Without dead ends: 12 [2020-08-27 21:59:02,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-27 21:59:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-08-27 21:59:02,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-08-27 21:59:02,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-08-27 21:59:02,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-08-27 21:59:02,074 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-08-27 21:59:02,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:59:02,075 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-08-27 21:59:02,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-27 21:59:02,075 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-08-27 21:59:02,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-08-27 21:59:02,076 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:59:02,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:59:02,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-27 21:59:02,077 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:59:02,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:59:02,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1432376145, now seen corresponding path program 1 times [2020-08-27 21:59:02,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:59:02,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851730777] [2020-08-27 21:59:02,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:59:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:02,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:59:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:59:02,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851730777] [2020-08-27 21:59:02,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:59:02,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-08-27 21:59:02,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562600343] [2020-08-27 21:59:02,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-27 21:59:02,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:59:02,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-27 21:59:02,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-27 21:59:02,177 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 4 states. [2020-08-27 21:59:02,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:59:02,205 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-08-27 21:59:02,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-27 21:59:02,205 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-08-27 21:59:02,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:59:02,206 INFO L225 Difference]: With dead ends: 18 [2020-08-27 21:59:02,207 INFO L226 Difference]: Without dead ends: 13 [2020-08-27 21:59:02,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-27 21:59:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-08-27 21:59:02,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-08-27 21:59:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-08-27 21:59:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-08-27 21:59:02,213 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2020-08-27 21:59:02,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:59:02,213 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-08-27 21:59:02,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-27 21:59:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-08-27 21:59:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-27 21:59:02,215 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:59:02,215 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:59:02,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-27 21:59:02,215 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:59:02,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:59:02,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1490448798, now seen corresponding path program 2 times [2020-08-27 21:59:02,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:59:02,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092267974] [2020-08-27 21:59:02,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:59:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:02,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:59:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:02,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:59:02,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092267974] [2020-08-27 21:59:02,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:59:02,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-27 21:59:02,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245137148] [2020-08-27 21:59:02,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-27 21:59:02,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:59:02,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-27 21:59:02,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-27 21:59:02,336 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2020-08-27 21:59:02,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:59:02,366 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-08-27 21:59:02,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-27 21:59:02,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-08-27 21:59:02,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:59:02,368 INFO L225 Difference]: With dead ends: 19 [2020-08-27 21:59:02,368 INFO L226 Difference]: Without dead ends: 14 [2020-08-27 21:59:02,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-27 21:59:02,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-08-27 21:59:02,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-08-27 21:59:02,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-08-27 21:59:02,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-08-27 21:59:02,374 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2020-08-27 21:59:02,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:59:02,375 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-08-27 21:59:02,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-27 21:59:02,375 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-08-27 21:59:02,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-27 21:59:02,376 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:59:02,376 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:59:02,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-27 21:59:02,377 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:59:02,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:59:02,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1004266255, now seen corresponding path program 3 times [2020-08-27 21:59:02,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:59:02,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925146697] [2020-08-27 21:59:02,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:59:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:02,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:59:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:02,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:59:02,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925146697] [2020-08-27 21:59:02,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:59:02,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-27 21:59:02,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292674765] [2020-08-27 21:59:02,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-27 21:59:02,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:59:02,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-27 21:59:02,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-08-27 21:59:02,539 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2020-08-27 21:59:02,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:59:02,573 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-08-27 21:59:02,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-27 21:59:02,574 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-08-27 21:59:02,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:59:02,574 INFO L225 Difference]: With dead ends: 20 [2020-08-27 21:59:02,575 INFO L226 Difference]: Without dead ends: 15 [2020-08-27 21:59:02,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-08-27 21:59:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-08-27 21:59:02,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-08-27 21:59:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-08-27 21:59:02,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-08-27 21:59:02,581 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2020-08-27 21:59:02,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:59:02,581 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-08-27 21:59:02,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-27 21:59:02,581 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-08-27 21:59:02,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-27 21:59:02,582 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:59:02,582 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:59:02,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-27 21:59:02,583 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:59:02,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:59:02,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1031021570, now seen corresponding path program 4 times [2020-08-27 21:59:02,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:59:02,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292670526] [2020-08-27 21:59:02,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:59:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:02,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:59:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:02,738 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:59:02,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292670526] [2020-08-27 21:59:02,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:59:02,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-27 21:59:02,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744675657] [2020-08-27 21:59:02,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-27 21:59:02,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:59:02,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-27 21:59:02,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-27 21:59:02,748 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 7 states. [2020-08-27 21:59:02,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:59:02,811 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-08-27 21:59:02,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-27 21:59:02,812 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-08-27 21:59:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:59:02,813 INFO L225 Difference]: With dead ends: 21 [2020-08-27 21:59:02,813 INFO L226 Difference]: Without dead ends: 16 [2020-08-27 21:59:02,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-27 21:59:02,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-08-27 21:59:02,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-08-27 21:59:02,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-08-27 21:59:02,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-08-27 21:59:02,820 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2020-08-27 21:59:02,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:59:02,820 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-08-27 21:59:02,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-27 21:59:02,821 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-08-27 21:59:02,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-27 21:59:02,821 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:59:02,822 INFO L422 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:59:02,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-27 21:59:02,822 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:59:02,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:59:02,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1860436335, now seen corresponding path program 5 times [2020-08-27 21:59:02,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:59:02,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400669503] [2020-08-27 21:59:02,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:59:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:03,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:59:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:59:03,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400669503] [2020-08-27 21:59:03,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:59:03,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-27 21:59:03,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592915074] [2020-08-27 21:59:03,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:59:03,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:59:03,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:59:03,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:59:03,057 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2020-08-27 21:59:03,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:59:03,135 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-08-27 21:59:03,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-27 21:59:03,136 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-08-27 21:59:03,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:59:03,137 INFO L225 Difference]: With dead ends: 22 [2020-08-27 21:59:03,137 INFO L226 Difference]: Without dead ends: 17 [2020-08-27 21:59:03,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:59:03,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-08-27 21:59:03,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-08-27 21:59:03,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-08-27 21:59:03,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-08-27 21:59:03,148 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2020-08-27 21:59:03,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:59:03,153 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-08-27 21:59:03,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:59:03,153 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-08-27 21:59:03,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-27 21:59:03,154 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:59:03,154 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:59:03,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-27 21:59:03,155 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:59:03,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:59:03,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1802490274, now seen corresponding path program 6 times [2020-08-27 21:59:03,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:59:03,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092225811] [2020-08-27 21:59:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:59:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:03,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:59:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:59:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:59:03,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092225811] [2020-08-27 21:59:03,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:59:03,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-27 21:59:03,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013707191] [2020-08-27 21:59:03,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-27 21:59:03,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:59:03,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-27 21:59:03,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-08-27 21:59:03,523 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 12 states. [2020-08-27 21:59:03,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:59:03,629 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-08-27 21:59:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-27 21:59:03,629 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-08-27 21:59:03,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:59:03,630 INFO L225 Difference]: With dead ends: 21 [2020-08-27 21:59:03,631 INFO L226 Difference]: Without dead ends: 0 [2020-08-27 21:59:03,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-08-27 21:59:03,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-27 21:59:03,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-27 21:59:03,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-27 21:59:03,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-27 21:59:03,633 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-08-27 21:59:03,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:59:03,634 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-27 21:59:03,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-27 21:59:03,634 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-27 21:59:03,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-27 21:59:03,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-27 21:59:03,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-27 21:59:03,739 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-27 21:59:03,739 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-27 21:59:03,740 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-27 21:59:03,740 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-27 21:59:03,740 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-27 21:59:03,740 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-27 21:59:03,740 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2020-08-27 21:59:03,740 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2020-08-27 21:59:03,740 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2020-08-27 21:59:03,741 INFO L264 CegarLoopResult]: At program point L14-2(lines 14 17) the Hoare annotation is: (let ((.cse1 (div main_~x~0 4294967296))) (or (let ((.cse0 (* 4294967296 .cse1))) (and (< (+ .cse0 5) main_~x~0) (<= main_~x~0 (+ .cse0 6)) (<= 0 .cse1))) (and (<= main_~x~0 5) (<= 5 main_~x~0)) (and (< 0 (+ .cse1 1)) (<= main_~x~0 4)))) [2020-08-27 21:59:03,741 INFO L264 CegarLoopResult]: At program point L14-3(lines 14 17) the Hoare annotation is: (let ((.cse1 (div main_~x~0 4294967296))) (let ((.cse0 (* 4294967296 .cse1))) (and (< (+ .cse0 5) main_~x~0) (<= main_~x~0 (+ .cse0 6)) (<= 0 .cse1)))) [2020-08-27 21:59:03,741 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-08-27 21:59:03,742 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-08-27 21:59:03,742 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-27 21:59:03,742 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-08-27 21:59:03,742 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-08-27 21:59:03,742 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-08-27 21:59:03,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 09:59:03 BoogieIcfgContainer [2020-08-27 21:59:03,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-27 21:59:03,767 INFO L168 Benchmark]: Toolchain (without parser) took 2961.19 ms. Allocated memory was 140.0 MB in the beginning and 235.4 MB in the end (delta: 95.4 MB). Free memory was 102.4 MB in the beginning and 147.8 MB in the end (delta: -45.4 MB). Peak memory consumption was 50.0 MB. Max. memory is 7.1 GB. [2020-08-27 21:59:03,768 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-27 21:59:03,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.42 ms. Allocated memory is still 140.0 MB. Free memory was 102.2 MB in the beginning and 92.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-08-27 21:59:03,770 INFO L168 Benchmark]: Boogie Preprocessor took 113.80 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 92.8 MB in the beginning and 182.6 MB in the end (delta: -89.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-08-27 21:59:03,771 INFO L168 Benchmark]: RCFGBuilder took 282.22 ms. Allocated memory is still 203.4 MB. Free memory was 182.6 MB in the beginning and 170.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-08-27 21:59:03,773 INFO L168 Benchmark]: TraceAbstraction took 2267.45 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 170.3 MB in the beginning and 147.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2020-08-27 21:59:03,777 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 292.42 ms. Allocated memory is still 140.0 MB. Free memory was 102.2 MB in the beginning and 92.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.80 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 92.8 MB in the beginning and 182.6 MB in the end (delta: -89.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 282.22 ms. Allocated memory is still 203.4 MB. Free memory was 182.6 MB in the beginning and 170.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2267.45 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 170.3 MB in the beginning and 147.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 54.5 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 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((4294967296 * (x / 4294967296) + 5 < x && x <= 4294967296 * (x / 4294967296) + 6) && 0 <= x / 4294967296) || (x <= 5 && 5 <= x)) || (0 < x / 4294967296 + 1 && x <= 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 2 SDslu, 212 SDs, 0 SdLazy, 174 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 14 PreInvPairs, 22 NumberOfFragments, 72 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 59 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 4045 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/56 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...