/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/loops/array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:47:39,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:47:39,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:47:39,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:47:39,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:47:39,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:47:39,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:47:39,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:47:39,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:47:39,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:47:39,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:47:39,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:47:39,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:47:39,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:47:39,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:47:39,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:47:39,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:47:39,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:47:39,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:47:39,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:47:39,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:47:39,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:47:39,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:47:39,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:47:39,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:47:39,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:47:39,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:47:39,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:47:39,768 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 11:47:39,782 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:47:39,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:47:39,784 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:47:39,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:47:39,785 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:47:39,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:47:39,785 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:47:39,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:47:39,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:47:39,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:47:39,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:47:39,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:47:39,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:47:39,786 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:47:39,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:47:39,787 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:47:39,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:47:39,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:47:39,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:47:39,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:47:39,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:47:39,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:47:39,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:47:39,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:47:39,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:47:39,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:47:39,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:47:39,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:47:39,791 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:47:39,791 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 11:47:40,104 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:47:40,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:47:40,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:47:40,122 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:47:40,122 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:47:40,123 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-1.c [2020-07-20 11:47:40,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09961bd86/764e3706bc0249a0951af2513e8618ce/FLAG3f1d331fb [2020-07-20 11:47:40,672 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:47:40,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array-1.c [2020-07-20 11:47:40,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09961bd86/764e3706bc0249a0951af2513e8618ce/FLAG3f1d331fb [2020-07-20 11:47:41,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09961bd86/764e3706bc0249a0951af2513e8618ce [2020-07-20 11:47:41,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:47:41,035 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:47:41,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:47:41,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:47:41,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:47:41,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:47:41" (1/1) ... [2020-07-20 11:47:41,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183c97ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:47:41, skipping insertion in model container [2020-07-20 11:47:41,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:47:41" (1/1) ... [2020-07-20 11:47:41,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:47:41,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:47:41,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:47:41,236 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:47:41,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:47:41,280 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:47:41,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:47:41 WrapperNode [2020-07-20 11:47:41,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:47:41,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:47:41,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:47:41,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:47:41,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:47:41" (1/1) ... [2020-07-20 11:47:41,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:47:41" (1/1) ... [2020-07-20 11:47:41,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:47:41" (1/1) ... [2020-07-20 11:47:41,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:47:41" (1/1) ... [2020-07-20 11:47:41,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:47:41" (1/1) ... [2020-07-20 11:47:41,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:47:41" (1/1) ... [2020-07-20 11:47:41,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:47:41" (1/1) ... [2020-07-20 11:47:41,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:47:41,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:47:41,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:47:41,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:47:41,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:47:41" (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 11:47:41,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:47:41,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:47:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 11:47:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:47:41,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:47:41,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 11:47:41,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:47:41,472 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:47:41,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 11:47:41,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 11:47:41,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 11:47:41,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 11:47:41,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:47:41,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:47:41,706 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:47:41,706 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:47:41,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:47:41 BoogieIcfgContainer [2020-07-20 11:47:41,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:47:41,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:47:41,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:47:41,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:47:41,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:47:41" (1/3) ... [2020-07-20 11:47:41,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10551da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:47:41, skipping insertion in model container [2020-07-20 11:47:41,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:47:41" (2/3) ... [2020-07-20 11:47:41,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10551da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:47:41, skipping insertion in model container [2020-07-20 11:47:41,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:47:41" (3/3) ... [2020-07-20 11:47:41,720 INFO L109 eAbstractionObserver]: Analyzing ICFG array-1.c [2020-07-20 11:47:41,732 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:47:41,740 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:47:41,755 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:47:41,797 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:47:41,797 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:47:41,797 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:47:41,798 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:47:41,798 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:47:41,798 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:47:41,798 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:47:41,799 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:47:41,827 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-20 11:47:41,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-20 11:47:41,835 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:47:41,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:47:41,837 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:47:41,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:47:41,844 INFO L82 PathProgramCache]: Analyzing trace with hash 202253298, now seen corresponding path program 1 times [2020-07-20 11:47:41,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:47:41,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112502815] [2020-07-20 11:47:41,854 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 11:47:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:47:41,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 11:47:41,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:47:41,988 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 11:47:41,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:47:41,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112502815] [2020-07-20 11:47:41,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:47:41,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 11:47:41,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265771932] [2020-07-20 11:47:41,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 11:47:42,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:47:42,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 11:47:42,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 11:47:42,016 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-07-20 11:47:42,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:47:42,036 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2020-07-20 11:47:42,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 11:47:42,037 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-20 11:47:42,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:47:42,043 INFO L225 Difference]: With dead ends: 35 [2020-07-20 11:47:42,044 INFO L226 Difference]: Without dead ends: 15 [2020-07-20 11:47:42,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 11:47:42,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-20 11:47:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-20 11:47:42,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-20 11:47:42,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-07-20 11:47:42,082 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2020-07-20 11:47:42,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:47:42,082 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-07-20 11:47:42,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 11:47:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-07-20 11:47:42,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-20 11:47:42,084 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:47:42,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:47:42,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:47:42,293 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:47:42,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:47:42,295 INFO L82 PathProgramCache]: Analyzing trace with hash -112667363, now seen corresponding path program 1 times [2020-07-20 11:47:42,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:47:42,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776901035] [2020-07-20 11:47:42,297 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 11:47:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:47:42,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 11:47:42,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:47:42,379 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 11:47:42,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:47:42,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776901035] [2020-07-20 11:47:42,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:47:42,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:47:42,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413702843] [2020-07-20 11:47:42,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:47:42,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:47:42,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:47:42,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:47:42,384 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2020-07-20 11:47:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:47:42,426 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2020-07-20 11:47:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:47:42,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-07-20 11:47:42,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:47:42,428 INFO L225 Difference]: With dead ends: 24 [2020-07-20 11:47:42,428 INFO L226 Difference]: Without dead ends: 18 [2020-07-20 11:47:42,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:47:42,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-20 11:47:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2020-07-20 11:47:42,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-20 11:47:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-07-20 11:47:42,441 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2020-07-20 11:47:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:47:42,442 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-07-20 11:47:42,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:47:42,443 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-07-20 11:47:42,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-20 11:47:42,444 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:47:42,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:47:42,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:47:42,662 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:47:42,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:47:42,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1912057964, now seen corresponding path program 1 times [2020-07-20 11:47:42,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:47:42,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561770439] [2020-07-20 11:47:42,665 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 [2020-07-20 11:47:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:47:42,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 11:47:42,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:47:42,799 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-20 11:47:42,800 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 11:47:42,819 INFO L624 ElimStorePlain]: treesize reduction 5, result has 82.1 percent of original size [2020-07-20 11:47:42,835 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2020-07-20 11:47:42,835 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 11:47:42,850 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:47:42,852 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:47:42,852 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:59, output treesize:5 [2020-07-20 11:47:42,868 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:47:42,957 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:47:42,958 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2020-07-20 11:47:42,963 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:47:42,964 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:47:42,967 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-20 11:47:42,987 INFO L624 ElimStorePlain]: treesize reduction 16, result has 36.0 percent of original size [2020-07-20 11:47:42,990 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:47:42,991 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:31, output treesize:3 [2020-07-20 11:47:43,007 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:47:43,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:47:43,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:47:43,076 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:43,105 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:43,165 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:43,167 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:43,172 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:43,196 WARN L234 Elim1Store]: Array PQE input equivalent to true [2020-07-20 11:47:43,197 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 11:47:43,208 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2020-07-20 11:47:43,213 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-20 11:47:43,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 11:47:43,223 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-20 11:47:43,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 11:47:43,233 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-07-20 11:47:43,234 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-20 11:47:43,237 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:47:43,237 INFO L544 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:47:43,246 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2020-07-20 11:47:43,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 11:47:43,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 11:47:43,287 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2020-07-20 11:47:43,288 INFO L544 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-07-20 11:47:43,291 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:47:43,292 INFO L544 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:47:43,297 WARN L234 Elim1Store]: Array PQE input equivalent to true [2020-07-20 11:47:43,297 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-20 11:47:43,345 INFO L624 ElimStorePlain]: treesize reduction 31, result has 36.7 percent of original size [2020-07-20 11:47:43,347 INFO L544 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-20 11:47:43,347 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:233, output treesize:18 [2020-07-20 11:47:43,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:47:43,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561770439] [2020-07-20 11:47:43,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:47:43,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2020-07-20 11:47:43,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526510146] [2020-07-20 11:47:43,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-20 11:47:43,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:47:43,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-20 11:47:43,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-07-20 11:47:43,392 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 11 states. [2020-07-20 11:47:43,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:47:43,617 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-07-20 11:47:43,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 11:47:43,618 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2020-07-20 11:47:43,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:47:43,619 INFO L225 Difference]: With dead ends: 24 [2020-07-20 11:47:43,619 INFO L226 Difference]: Without dead ends: 18 [2020-07-20 11:47:43,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-07-20 11:47:43,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-20 11:47:43,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-07-20 11:47:43,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-20 11:47:43,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-07-20 11:47:43,626 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15 [2020-07-20 11:47:43,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:47:43,626 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-07-20 11:47:43,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-20 11:47:43,627 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-07-20 11:47:43,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-20 11:47:43,627 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:47:43,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:47:43,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:47:43,843 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:47:43,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:47:43,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1573562706, now seen corresponding path program 1 times [2020-07-20 11:47:43,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:47:43,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772169510] [2020-07-20 11:47:43,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:47:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:47:43,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 11:47:43,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:47:43,891 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 11:47:43,892 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 11:47:43,895 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 11:47:43,915 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-20 11:47:43,916 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 11:47:43,926 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2020-07-20 11:47:43,927 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 11:47:43,967 INFO L624 ElimStorePlain]: treesize reduction 109, result has 22.7 percent of original size [2020-07-20 11:47:43,967 INFO L512 ElimStorePlain]: Eliminatee |v_#memory_int_9| vanished before elimination [2020-07-20 11:47:43,969 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-20 11:47:43,969 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:193, output treesize:19 [2020-07-20 11:47:44,018 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:47:44,019 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2020-07-20 11:47:44,021 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:47:44,023 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:47:44,024 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-20 11:47:44,038 INFO L624 ElimStorePlain]: treesize reduction 11, result has 50.0 percent of original size [2020-07-20 11:47:44,040 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:47:44,040 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:28, output treesize:5 [2020-07-20 11:47:44,053 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:47:44,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:47:44,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:47:44,112 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:44,173 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:44,176 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:44,177 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:44,180 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:44,199 WARN L234 Elim1Store]: Array PQE input equivalent to true [2020-07-20 11:47:44,199 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 11:47:44,206 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2020-07-20 11:47:44,210 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-20 11:47:44,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 11:47:44,216 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-20 11:47:44,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 11:47:44,222 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-07-20 11:47:44,223 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-20 11:47:44,224 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:47:44,225 INFO L544 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:47:44,229 WARN L234 Elim1Store]: Array PQE input equivalent to true [2020-07-20 11:47:44,229 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-07-20 11:47:44,234 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2020-07-20 11:47:44,247 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:47:44,248 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 118 [2020-07-20 11:47:44,250 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:44,251 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:44,252 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:44,254 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:44,255 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:44,256 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-20 11:47:44,258 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:47:44,260 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2020-07-20 11:47:44,277 INFO L624 ElimStorePlain]: treesize reduction 127, result has 6.6 percent of original size [2020-07-20 11:47:44,278 INFO L544 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:47:44,321 INFO L624 ElimStorePlain]: treesize reduction 32, result has 36.0 percent of original size [2020-07-20 11:47:44,322 INFO L544 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-20 11:47:44,323 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:235, output treesize:18 [2020-07-20 11:47:44,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:47:44,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772169510] [2020-07-20 11:47:44,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:47:44,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2020-07-20 11:47:44,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303837057] [2020-07-20 11:47:44,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 11:47:44,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:47:44,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 11:47:44,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-07-20 11:47:44,366 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 12 states. [2020-07-20 11:47:44,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:47:44,512 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-07-20 11:47:44,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:47:44,512 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-07-20 11:47:44,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:47:44,513 INFO L225 Difference]: With dead ends: 17 [2020-07-20 11:47:44,513 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:47:44,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-07-20 11:47:44,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:47:44,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:47:44,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:47:44,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:47:44,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-07-20 11:47:44,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:47:44,516 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:47:44,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 11:47:44,516 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:47:44,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:47:44,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:47:44,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:47:44,877 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:47:44,877 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:47:44,877 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:47:44,877 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:47:44,878 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 11:47:44,878 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:47:44,878 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:47:44,878 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 29) the Hoare annotation is: true [2020-07-20 11:47:44,878 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (and (< main_~menor~0 (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 1)) (<= main_~menor~0 |main_#t~mem5|) (= 1 main_~SIZE~0)) [2020-07-20 11:47:44,879 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-07-20 11:47:44,879 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2020-07-20 11:47:44,879 INFO L268 CegarLoopResult]: For program point L22(lines 22 23) no Hoare annotation was computed. [2020-07-20 11:47:44,879 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 24) no Hoare annotation was computed. [2020-07-20 11:47:44,880 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 24) the Hoare annotation is: (and (= 1 main_~SIZE~0) (or (< main_~menor~0 (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 1)) (= 0 main_~j~0))) [2020-07-20 11:47:44,880 INFO L268 CegarLoopResult]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2020-07-20 11:47:44,880 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2020-07-20 11:47:44,880 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-20 11:47:44,880 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-07-20 11:47:44,881 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-20 11:47:44,881 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-20 11:47:44,881 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-07-20 11:47:44,881 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-07-20 11:47:44,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-20 11:47:44,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-20 11:47:44,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:47:44 BoogieIcfgContainer [2020-07-20 11:47:44,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:47:44,911 INFO L168 Benchmark]: Toolchain (without parser) took 3876.08 ms. Allocated memory was 136.3 MB in the beginning and 230.7 MB in the end (delta: 94.4 MB). Free memory was 100.8 MB in the beginning and 81.8 MB in the end (delta: 19.0 MB). Peak memory consumption was 113.4 MB. Max. memory is 7.1 GB. [2020-07-20 11:47:44,912 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory is still 119.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 11:47:44,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.79 ms. Allocated memory is still 136.3 MB. Free memory was 100.4 MB in the beginning and 90.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-20 11:47:44,915 INFO L168 Benchmark]: Boogie Preprocessor took 125.31 ms. Allocated memory was 136.3 MB in the beginning and 201.9 MB in the end (delta: 65.5 MB). Free memory was 90.7 MB in the beginning and 179.2 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:47:44,920 INFO L168 Benchmark]: RCFGBuilder took 303.97 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 165.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:47:44,925 INFO L168 Benchmark]: TraceAbstraction took 3195.66 ms. Allocated memory was 201.9 MB in the beginning and 230.7 MB in the end (delta: 28.8 MB). Free memory was 164.0 MB in the beginning and 81.8 MB in the end (delta: 82.2 MB). Peak memory consumption was 111.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:47:44,928 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory is still 119.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.79 ms. Allocated memory is still 136.3 MB. Free memory was 100.4 MB in the beginning and 90.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.31 ms. Allocated memory was 136.3 MB in the beginning and 201.9 MB in the end (delta: 65.5 MB). Free memory was 90.7 MB in the beginning and 179.2 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 303.97 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 165.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3195.66 ms. Allocated memory was 201.9 MB in the beginning and 230.7 MB in the end (delta: 28.8 MB). Free memory was 164.0 MB in the beginning and 81.8 MB in the end (delta: 82.2 MB). Peak memory consumption was 111.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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: 19]: Loop Invariant [2020-07-20 11:47:44,935 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-20 11:47:44,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: 1 == SIZE && (menor < unknown-#memory_int-unknown[array][array] + 1 || 0 == j) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 25 SDslu, 125 SDs, 0 SdLazy, 105 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 13 NumberOfFragments, 38 HoareAnnotationTreeSize, 10 FomulaSimplifications, 7 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 65 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 9 QuantifiedInterpolants, 5642 SizeOfPredicates, 27 NumberOfNonLiveVariables, 244 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 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...