/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 [2020-07-20 12:18:35,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 12:18:35,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 12:18:35,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 12:18:35,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 12:18:35,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 12:18:35,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 12:18:35,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 12:18:35,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 12:18:35,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 12:18:35,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 12:18:35,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 12:18:35,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 12:18:35,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 12:18:35,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 12:18:35,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 12:18:35,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 12:18:35,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 12:18:35,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 12:18:35,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 12:18:35,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 12:18:35,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 12:18:35,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 12:18:35,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 12:18:35,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 12:18:35,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 12:18:35,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 12:18:35,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 12:18:35,769 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 [2020-07-20 12:18:35,796 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 12:18:35,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 12:18:35,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 12:18:35,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 12:18:35,801 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 12:18:35,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 12:18:35,801 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 12:18:35,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 12:18:35,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 12:18:35,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 12:18:35,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 12:18:35,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 12:18:35,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 12:18:35,804 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 12:18:35,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 12:18:35,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 12:18:35,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 12:18:35,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 12:18:35,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 12:18:35,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 12:18:35,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 12:18:35,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 12:18:35,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 12:18:35,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 12:18:35,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 12:18:35,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 12:18:35,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:18:35,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 12:18:35,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 12:18:35,808 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 [2020-07-20 12:18:36,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 12:18:36,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 12:18:36,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 12:18:36,128 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 12:18:36,128 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 12:18:36,129 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/odd.c [2020-07-20 12:18:36,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259aea711/b24bb67b390747f0b1195a3620168c10/FLAGda6a4261d [2020-07-20 12:18:36,708 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 12:18:36,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/odd.c [2020-07-20 12:18:36,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259aea711/b24bb67b390747f0b1195a3620168c10/FLAGda6a4261d [2020-07-20 12:18:37,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259aea711/b24bb67b390747f0b1195a3620168c10 [2020-07-20 12:18:37,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 12:18:37,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 12:18:37,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 12:18:37,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 12:18:37,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 12:18:37,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:18:37" (1/1) ... [2020-07-20 12:18:37,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d41fe60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:18:37, skipping insertion in model container [2020-07-20 12:18:37,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:18:37" (1/1) ... [2020-07-20 12:18:37,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 12:18:37,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 12:18:37,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:18:37,265 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 12:18:37,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:18:37,296 INFO L208 MainTranslator]: Completed translation [2020-07-20 12:18:37,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:18:37 WrapperNode [2020-07-20 12:18:37,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 12:18:37,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 12:18:37,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 12:18:37,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 12:18:37,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:18:37" (1/1) ... [2020-07-20 12:18:37,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:18:37" (1/1) ... [2020-07-20 12:18:37,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:18:37" (1/1) ... [2020-07-20 12:18:37,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:18:37" (1/1) ... [2020-07-20 12:18:37,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:18:37" (1/1) ... [2020-07-20 12:18:37,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:18:37" (1/1) ... [2020-07-20 12:18:37,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:18:37" (1/1) ... [2020-07-20 12:18:37,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 12:18:37,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 12:18:37,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 12:18:37,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 12:18:37,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:18:37" (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 [2020-07-20 12:18:37,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 12:18:37,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 12:18:37,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 12:18:37,476 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 12:18:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 12:18:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 12:18:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 12:18:37,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 12:18:37,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 12:18:37,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 12:18:37,656 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 12:18:37,656 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 12:18:37,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:18:37 BoogieIcfgContainer [2020-07-20 12:18:37,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 12:18:37,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 12:18:37,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 12:18:37,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 12:18:37,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:18:37" (1/3) ... [2020-07-20 12:18:37,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c15ebd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:18:37, skipping insertion in model container [2020-07-20 12:18:37,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:18:37" (2/3) ... [2020-07-20 12:18:37,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c15ebd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:18:37, skipping insertion in model container [2020-07-20 12:18:37,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:18:37" (3/3) ... [2020-07-20 12:18:37,668 INFO L109 eAbstractionObserver]: Analyzing ICFG odd.c [2020-07-20 12:18:37,680 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 12:18:37,688 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 12:18:37,702 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 12:18:37,725 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 12:18:37,725 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 12:18:37,725 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 12:18:37,725 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 12:18:37,725 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 12:18:37,726 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 12:18:37,726 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 12:18:37,726 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 12:18:37,742 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-20 12:18:37,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-20 12:18:37,748 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:18:37,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:18:37,750 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:18:37,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:18:37,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2020-07-20 12:18:37,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:18:37,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973082385] [2020-07-20 12:18:37,763 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 [2020-07-20 12:18:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:18:37,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 12:18:37,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:18:37,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:18:37,932 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:18:37,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973082385] [2020-07-20 12:18:37,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:18:37,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 12:18:37,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978312341] [2020-07-20 12:18:37,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 12:18:37,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:18:37,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 12:18:37,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 12:18:37,960 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-07-20 12:18:37,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:18:37,981 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2020-07-20 12:18:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 12:18:37,982 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-20 12:18:37,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:18:37,989 INFO L225 Difference]: With dead ends: 31 [2020-07-20 12:18:37,990 INFO L226 Difference]: Without dead ends: 12 [2020-07-20 12:18:37,993 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 [2020-07-20 12:18:38,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-07-20 12:18:38,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-07-20 12:18:38,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-20 12:18:38,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-07-20 12:18:38,029 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-07-20 12:18:38,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:18:38,030 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-07-20 12:18:38,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 12:18:38,031 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-07-20 12:18:38,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-20 12:18:38,031 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:18:38,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:18:38,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:18:38,246 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:18:38,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:18:38,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1890620952, now seen corresponding path program 1 times [2020-07-20 12:18:38,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:18:38,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121705899] [2020-07-20 12:18:38,247 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 [2020-07-20 12:18:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:18:38,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 12:18:38,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:18:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:18:38,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:18:38,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121705899] [2020-07-20 12:18:38,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:18:38,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 12:18:38,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788695066] [2020-07-20 12:18:38,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 12:18:38,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:18:38,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 12:18:38,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 12:18:38,344 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2020-07-20 12:18:38,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:18:38,406 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-07-20 12:18:38,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 12:18:38,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-20 12:18:38,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:18:38,408 INFO L225 Difference]: With dead ends: 19 [2020-07-20 12:18:38,408 INFO L226 Difference]: Without dead ends: 14 [2020-07-20 12:18:38,409 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 [2020-07-20 12:18:38,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-07-20 12:18:38,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-07-20 12:18:38,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-20 12:18:38,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-07-20 12:18:38,415 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2020-07-20 12:18:38,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:18:38,416 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-07-20 12:18:38,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 12:18:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-07-20 12:18:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-20 12:18:38,417 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:18:38,417 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:18:38,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:18:38,630 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:18:38,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:18:38,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1109630717, now seen corresponding path program 1 times [2020-07-20 12:18:38,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:18:38,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464443888] [2020-07-20 12:18:38,633 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) [2020-07-20 12:18:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:18:38,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 10 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:18:38,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:18:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:18:38,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 12:18:38,949 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 6 [2020-07-20 12:18:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 12:18:38,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464443888] [2020-07-20 12:18:38,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 12:18:38,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-07-20 12:18:38,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131294005] [2020-07-20 12:18:38,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 12:18:38,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:18:38,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 12:18:38,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 12:18:38,968 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 5 states. [2020-07-20 12:18:38,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:18:38,996 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-07-20 12:18:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 12:18:38,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-20 12:18:38,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:18:38,997 INFO L225 Difference]: With dead ends: 14 [2020-07-20 12:18:38,998 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 12:18:38,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-20 12:18:38,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 12:18:38,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 12:18:39,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 12:18:39,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 12:18:39,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-07-20 12:18:39,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:18:39,000 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 12:18:39,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 12:18:39,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 12:18:39,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 12:18:39,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:18:39,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 12:18:39,293 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-20 12:18:39,294 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 12:18:39,294 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 12:18:39,294 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 12:18:39,294 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 12:18:39,294 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 12:18:39,295 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 16) the Hoare annotation is: true [2020-07-20 12:18:39,295 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 16) no Hoare annotation was computed. [2020-07-20 12:18:39,295 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-07-20 12:18:39,295 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 9 16) no Hoare annotation was computed. [2020-07-20 12:18:39,295 INFO L268 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-07-20 12:18:39,296 INFO L264 CegarLoopResult]: At program point L11-3(lines 11 13) the Hoare annotation is: (not (= 0 (mod main_~x~0 2))) [2020-07-20 12:18:39,296 INFO L264 CegarLoopResult]: At program point L11-4(lines 11 13) the Hoare annotation is: (not (= 0 (mod main_~x~0 2))) [2020-07-20 12:18:39,296 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-20 12:18:39,296 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-07-20 12:18:39,296 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-20 12:18:39,297 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-20 12:18:39,297 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-07-20 12:18:39,297 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-07-20 12:18:39,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 12:18:39 BoogieIcfgContainer [2020-07-20 12:18:39,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 12:18:39,322 INFO L168 Benchmark]: Toolchain (without parser) took 2257.55 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 105.2 MB in the beginning and 99.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 61.4 MB. Max. memory is 7.1 GB. [2020-07-20 12:18:39,326 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 12:18:39,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.12 ms. Allocated memory is still 147.3 MB. Free memory was 104.8 MB in the beginning and 95.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-07-20 12:18:39,329 INFO L168 Benchmark]: Boogie Preprocessor took 29.74 ms. Allocated memory is still 147.3 MB. Free memory was 95.5 MB in the beginning and 94.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-20 12:18:39,331 INFO L168 Benchmark]: RCFGBuilder took 332.17 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 94.0 MB in the beginning and 172.0 MB in the end (delta: -77.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-20 12:18:39,336 INFO L168 Benchmark]: TraceAbstraction took 1658.10 ms. Allocated memory is still 203.4 MB. Free memory was 171.3 MB in the beginning and 99.9 MB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 7.1 GB. [2020-07-20 12:18:39,348 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 231.12 ms. Allocated memory is still 147.3 MB. Free memory was 104.8 MB in the beginning and 95.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.74 ms. Allocated memory is still 147.3 MB. Free memory was 95.5 MB in the beginning and 94.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 332.17 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 94.0 MB in the beginning and 172.0 MB in the end (delta: -77.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1658.10 ms. Allocated memory is still 203.4 MB. Free memory was 171.3 MB in the beginning and 99.9 MB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 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: 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: 1.4s, 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, 0.3s 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, 0.4s 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...