/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/odd.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:09:13,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:09:13,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:09:13,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:09:13,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:09:13,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:09:13,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:09:13,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:09:13,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:09:13,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:09:13,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:09:13,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:09:13,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:09:13,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:09:13,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:09:13,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:09:13,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:09:13,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:09:13,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:09:13,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:09:13,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:09:13,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:09:13,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:09:13,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:09:13,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:09:13,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:09:13,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:09:13,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:09:13,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:09:13,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-21 12:09:13,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:09:13,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:09:13,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:09:13,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 12:09:13,665 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:09:13,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:09:13,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:09:13,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:09:13,668 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:09:13,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:09:13,668 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:09:13,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:09:13,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:09:13,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:09:13,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:09:13,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:09:13,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:09:13,670 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:09:13,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:09:13,671 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:09:13,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:09:13,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:09:13,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:09:13,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:09:13,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:09:13,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:09:13,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:09:13,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:09:13,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:09:13,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:09:13,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:09:13,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:09:13,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:09:13,673 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 12:09:13,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:09:13,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:09:13,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:09:13,984 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:09:13,984 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:09:13,985 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/odd.c [2020-07-21 12:09:14,048 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce7ac3dd9/5947d43fc90b4204905d3d3a37a31f8c/FLAG75c2ca132 [2020-07-21 12:09:14,484 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:09:14,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/odd.c [2020-07-21 12:09:14,491 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce7ac3dd9/5947d43fc90b4204905d3d3a37a31f8c/FLAG75c2ca132 [2020-07-21 12:09:14,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce7ac3dd9/5947d43fc90b4204905d3d3a37a31f8c [2020-07-21 12:09:14,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:09:14,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:09:14,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:09:14,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:09:14,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:09:14,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:09:14" (1/1) ... [2020-07-21 12:09:14,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217ba61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:14, skipping insertion in model container [2020-07-21 12:09:14,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:09:14" (1/1) ... [2020-07-21 12:09:14,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:09:14,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:09:15,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:09:15,098 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:09:15,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:09:15,123 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:09:15,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:15 WrapperNode [2020-07-21 12:09:15,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:09:15,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:09:15,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:09:15,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:09:15,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:15" (1/1) ... [2020-07-21 12:09:15,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:15" (1/1) ... [2020-07-21 12:09:15,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:15" (1/1) ... [2020-07-21 12:09:15,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:15" (1/1) ... [2020-07-21 12:09:15,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:15" (1/1) ... [2020-07-21 12:09:15,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:15" (1/1) ... [2020-07-21 12:09:15,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:15" (1/1) ... [2020-07-21 12:09:15,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:09:15,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:09:15,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:09:15,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:09:15,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:15" (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 [2020-07-21 12:09:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:09:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:09:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 12:09:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:09:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:09:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:09:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 12:09:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:09:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:09:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:09:15,461 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:09:15,461 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 12:09:15,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:09:15 BoogieIcfgContainer [2020-07-21 12:09:15,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:09:15,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:09:15,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:09:15,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:09:15,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:09:14" (1/3) ... [2020-07-21 12:09:15,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e29995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:09:15, skipping insertion in model container [2020-07-21 12:09:15,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:15" (2/3) ... [2020-07-21 12:09:15,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e29995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:09:15, skipping insertion in model container [2020-07-21 12:09:15,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:09:15" (3/3) ... [2020-07-21 12:09:15,472 INFO L109 eAbstractionObserver]: Analyzing ICFG odd.c [2020-07-21 12:09:15,482 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:09:15,489 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:09:15,502 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:09:15,525 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:09:15,525 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:09:15,525 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:09:15,526 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:09:15,526 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:09:15,526 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:09:15,526 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:09:15,526 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:09:15,541 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-21 12:09:15,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-21 12:09:15,545 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:09:15,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:09:15,546 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:09:15,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:09:15,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2020-07-21 12:09:15,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:09:15,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573097644] [2020-07-21 12:09:15,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:09:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 12:09:15,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:09:15,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:09:15,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:09:15,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:09:15,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573097644] [2020-07-21 12:09:15,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:09:15,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:09:15,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025830435] [2020-07-21 12:09:15,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:09:15,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:09:15,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:09:15,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:09:15,721 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-07-21 12:09:15,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:09:15,741 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2020-07-21 12:09:15,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:09:15,742 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-21 12:09:15,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:09:15,749 INFO L225 Difference]: With dead ends: 31 [2020-07-21 12:09:15,749 INFO L226 Difference]: Without dead ends: 12 [2020-07-21 12:09:15,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:09:15,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-07-21 12:09:15,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-07-21 12:09:15,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-21 12:09:15,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-07-21 12:09:15,784 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-07-21 12:09:15,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:09:15,785 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-07-21 12:09:15,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:09:15,785 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-07-21 12:09:15,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-21 12:09:15,786 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:09:15,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:09:16,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:09:16,000 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:09:16,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:09:16,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1890620952, now seen corresponding path program 1 times [2020-07-21 12:09:16,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:09:16,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717038507] [2020-07-21 12:09:16,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:09:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 12:09:16,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:09:16,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:09:16,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:09:16,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:09:16,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717038507] [2020-07-21 12:09:16,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:09:16,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:09:16,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90786252] [2020-07-21 12:09:16,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:09:16,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:09:16,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:09:16,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:09:16,117 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2020-07-21 12:09:16,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:09:16,160 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-07-21 12:09:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:09:16,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-21 12:09:16,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:09:16,162 INFO L225 Difference]: With dead ends: 19 [2020-07-21 12:09:16,162 INFO L226 Difference]: Without dead ends: 14 [2020-07-21 12:09:16,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:09:16,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-07-21 12:09:16,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-07-21 12:09:16,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-21 12:09:16,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-07-21 12:09:16,168 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2020-07-21 12:09:16,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:09:16,169 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-07-21 12:09:16,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:09:16,169 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-07-21 12:09:16,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-21 12:09:16,170 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:09:16,170 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:09:16,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:09:16,383 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:09:16,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:09:16,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1109630717, now seen corresponding path program 1 times [2020-07-21 12:09:16,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:09:16,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138497562] [2020-07-21 12:09:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:09:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 12:09:16,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 12:09:16,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:09:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:09:16,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:09:16,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-21 12:09:16,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138497562] [2020-07-21 12:09:16,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 12:09:16,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-07-21 12:09:16,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991275302] [2020-07-21 12:09:16,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:09:16,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:09:16,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:09:16,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-21 12:09:16,616 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 5 states. [2020-07-21 12:09:16,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:09:16,639 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-07-21 12:09:16,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:09:16,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-21 12:09:16,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:09:16,640 INFO L225 Difference]: With dead ends: 14 [2020-07-21 12:09:16,641 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:09:16,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-21 12:09:16,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:09:16,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:09:16,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:09:16,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:09:16,642 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-07-21 12:09:16,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:09:16,643 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:09:16,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:09:16,643 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:09:16,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:09:16,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:09:16,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:09:16,914 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-21 12:09:16,915 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:09:16,915 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:09:16,915 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 12:09:16,915 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:09:16,915 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:09:16,916 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 16) the Hoare annotation is: true [2020-07-21 12:09:16,916 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 16) no Hoare annotation was computed. [2020-07-21 12:09:16,916 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-07-21 12:09:16,916 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 9 16) no Hoare annotation was computed. [2020-07-21 12:09:16,916 INFO L268 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-07-21 12:09:16,917 INFO L264 CegarLoopResult]: At program point L11-3(lines 11 13) the Hoare annotation is: (not (= 0 (mod main_~x~0 2))) [2020-07-21 12:09:16,917 INFO L264 CegarLoopResult]: At program point L11-4(lines 11 13) the Hoare annotation is: (not (= 0 (mod main_~x~0 2))) [2020-07-21 12:09:16,917 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-21 12:09:16,917 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-07-21 12:09:16,917 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-21 12:09:16,918 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-21 12:09:16,918 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-07-21 12:09:16,918 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-07-21 12:09:16,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:09:16 BoogieIcfgContainer [2020-07-21 12:09:16,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:09:16,938 INFO L168 Benchmark]: Toolchain (without parser) took 2059.54 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 106.6 MB in the end (delta: -5.2 MB). Peak memory consumption was 58.8 MB. Max. memory is 7.1 GB. [2020-07-21 12:09:16,940 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:09:16,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.13 ms. Allocated memory is still 138.4 MB. Free memory was 101.1 MB in the beginning and 91.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:09:16,942 INFO L168 Benchmark]: Boogie Preprocessor took 107.81 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 182.5 MB in the end (delta: -90.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-07-21 12:09:16,943 INFO L168 Benchmark]: RCFGBuilder took 228.26 ms. Allocated memory is still 202.4 MB. Free memory was 181.6 MB in the beginning and 170.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:09:16,944 INFO L168 Benchmark]: TraceAbstraction took 1470.06 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 106.6 MB in the end (delta: 63.0 MB). Peak memory consumption was 63.0 MB. Max. memory is 7.1 GB. [2020-07-21 12:09:16,948 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 138.4 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.13 ms. Allocated memory is still 138.4 MB. Free memory was 101.1 MB in the beginning and 91.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.81 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 182.5 MB in the end (delta: -90.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 228.26 ms. Allocated memory is still 202.4 MB. Free memory was 181.6 MB in the beginning and 170.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1470.06 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 106.6 MB in the end (delta: 63.0 MB). Peak memory consumption was 63.0 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 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(0 == x % 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 2 SDslu, 47 SDs, 0 SdLazy, 15 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 12 NumberOfFragments, 17 HoareAnnotationTreeSize, 9 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1109 SizeOfPredicates, 4 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 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...