/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 04:01:11,018 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 04:01:11,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 04:01:11,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 04:01:11,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 04:01:11,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 04:01:11,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 04:01:11,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 04:01:11,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 04:01:11,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 04:01:11,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 04:01:11,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 04:01:11,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 04:01:11,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 04:01:11,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 04:01:11,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 04:01:11,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 04:01:11,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 04:01:11,108 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 04:01:11,130 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 04:01:11,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 04:01:11,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 04:01:11,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 04:01:11,133 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 04:01:11,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 04:01:11,133 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 04:01:11,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 04:01:11,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 04:01:11,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 04:01:11,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 04:01:11,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 04:01:11,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 04:01:11,136 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 04:01:11,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 04:01:11,137 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 04:01:11,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 04:01:11,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 04:01:11,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 04:01:11,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 04:01:11,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 04:01:11,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 04:01:11,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 04:01:11,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 04:01:11,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 04:01:11,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 04:01:11,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 04:01:11,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 04:01:11,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 04:01:11,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 04:01:11,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 04:01:11,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 04:01:11,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 04:01:11,441 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 04:01:11,444 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 04:01:11,445 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c [2020-07-20 04:01:11,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/481911e7f/739649d1d94c47d18317d5a542091f59/FLAG07b59e945 [2020-07-20 04:01:11,925 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 04:01:11,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c [2020-07-20 04:01:11,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/481911e7f/739649d1d94c47d18317d5a542091f59/FLAG07b59e945 [2020-07-20 04:01:12,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/481911e7f/739649d1d94c47d18317d5a542091f59 [2020-07-20 04:01:12,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 04:01:12,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 04:01:12,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 04:01:12,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 04:01:12,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 04:01:12,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:01:12" (1/1) ... [2020-07-20 04:01:12,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf2186a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:01:12, skipping insertion in model container [2020-07-20 04:01:12,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:01:12" (1/1) ... [2020-07-20 04:01:12,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 04:01:12,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 04:01:12,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 04:01:12,561 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 04:01:12,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 04:01:12,595 INFO L208 MainTranslator]: Completed translation [2020-07-20 04:01:12,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:01:12 WrapperNode [2020-07-20 04:01:12,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 04:01:12,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 04:01:12,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 04:01:12,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 04:01:12,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:01:12" (1/1) ... [2020-07-20 04:01:12,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:01:12" (1/1) ... [2020-07-20 04:01:12,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:01:12" (1/1) ... [2020-07-20 04:01:12,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:01:12" (1/1) ... [2020-07-20 04:01:12,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:01:12" (1/1) ... [2020-07-20 04:01:12,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:01:12" (1/1) ... [2020-07-20 04:01:12,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:01:12" (1/1) ... [2020-07-20 04:01:12,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 04:01:12,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 04:01:12,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 04:01:12,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 04:01:12,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:01:12" (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 04:01:12,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 04:01:12,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 04:01:12,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 04:01:12,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 04:01:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 04:01:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 04:01:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 04:01:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 04:01:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 04:01:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 04:01:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 04:01:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 04:01:13,081 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 04:01:13,082 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 04:01:13,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:01:13 BoogieIcfgContainer [2020-07-20 04:01:13,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 04:01:13,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 04:01:13,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 04:01:13,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 04:01:13,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:01:12" (1/3) ... [2020-07-20 04:01:13,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ecc123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:01:13, skipping insertion in model container [2020-07-20 04:01:13,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:01:12" (2/3) ... [2020-07-20 04:01:13,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ecc123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:01:13, skipping insertion in model container [2020-07-20 04:01:13,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:01:13" (3/3) ... [2020-07-20 04:01:13,097 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2020-07-20 04:01:13,110 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 04:01:13,120 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-20 04:01:13,142 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-20 04:01:13,177 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 04:01:13,177 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 04:01:13,177 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 04:01:13,178 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 04:01:13,178 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 04:01:13,178 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 04:01:13,178 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 04:01:13,178 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 04:01:13,205 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-20 04:01:13,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-20 04:01:13,213 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:01:13,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:01:13,217 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:01:13,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:01:13,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1747837512, now seen corresponding path program 1 times [2020-07-20 04:01:13,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:01:13,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462249017] [2020-07-20 04:01:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@32623c57 [2020-07-20 04:01:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:01:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:01:13,529 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 04:01:13,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462249017] [2020-07-20 04:01:13,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:01:13,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 04:01:13,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300063070] [2020-07-20 04:01:13,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 04:01:13,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:01:13,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 04:01:13,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:01:13,557 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-07-20 04:01:13,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:01:13,697 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2020-07-20 04:01:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 04:01:13,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-20 04:01:13,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:01:13,710 INFO L225 Difference]: With dead ends: 30 [2020-07-20 04:01:13,710 INFO L226 Difference]: Without dead ends: 18 [2020-07-20 04:01:13,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 04:01:13,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-20 04:01:13,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-20 04:01:13,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-20 04:01:13,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2020-07-20 04:01:13,759 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2020-07-20 04:01:13,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:01:13,760 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2020-07-20 04:01:13,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 04:01:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-07-20 04:01:13,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-20 04:01:13,761 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:01:13,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:01:13,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 04:01:13,763 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:01:13,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:01:13,763 INFO L82 PathProgramCache]: Analyzing trace with hash -339542086, now seen corresponding path program 1 times [2020-07-20 04:01:13,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:01:13,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761041200] [2020-07-20 04:01:13,764 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@32623c57 [2020-07-20 04:01:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:01:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:01:13,848 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 04:01:13,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761041200] [2020-07-20 04:01:13,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:01:13,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 04:01:13,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095653884] [2020-07-20 04:01:13,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 04:01:13,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:01:13,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 04:01:13,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:01:13,853 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 5 states. [2020-07-20 04:01:13,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:01:13,964 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2020-07-20 04:01:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 04:01:13,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-20 04:01:13,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:01:13,966 INFO L225 Difference]: With dead ends: 19 [2020-07-20 04:01:13,966 INFO L226 Difference]: Without dead ends: 17 [2020-07-20 04:01:13,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 04:01:13,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-07-20 04:01:13,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-07-20 04:01:13,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-20 04:01:13,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-07-20 04:01:13,974 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2020-07-20 04:01:13,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:01:13,975 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-07-20 04:01:13,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 04:01:13,975 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-07-20 04:01:13,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-20 04:01:13,976 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:01:13,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:01:13,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 04:01:13,977 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:01:13,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:01:13,977 INFO L82 PathProgramCache]: Analyzing trace with hash 117666302, now seen corresponding path program 1 times [2020-07-20 04:01:13,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:01:13,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399335789] [2020-07-20 04:01:13,978 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@32623c57 [2020-07-20 04:01:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:01:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:01:14,066 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 04:01:14,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399335789] [2020-07-20 04:01:14,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:01:14,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 04:01:14,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960079230] [2020-07-20 04:01:14,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 04:01:14,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:01:14,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 04:01:14,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 04:01:14,069 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 6 states. [2020-07-20 04:01:14,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:01:14,269 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2020-07-20 04:01:14,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 04:01:14,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-20 04:01:14,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:01:14,270 INFO L225 Difference]: With dead ends: 25 [2020-07-20 04:01:14,271 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 04:01:14,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-07-20 04:01:14,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 04:01:14,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 04:01:14,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 04:01:14,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 04:01:14,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-07-20 04:01:14,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:01:14,287 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 04:01:14,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 04:01:14,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 04:01:14,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 04:01:14,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 04:01:14,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 04:01:14,487 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 04:01:14,488 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_100~0 |old(~__return_100~0)|)) [2020-07-20 04:01:14,488 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 04:01:14,488 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 04:01:14,488 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 04:01:14,488 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 04:01:14,489 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 04:01:14,489 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-07-20 04:01:14,489 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-20 04:01:14,489 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-07-20 04:01:14,489 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-20 04:01:14,490 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-07-20 04:01:14,490 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-07-20 04:01:14,490 INFO L268 CegarLoopResult]: For program point L31(lines 31 87) no Hoare annotation was computed. [2020-07-20 04:01:14,491 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-07-20 04:01:14,491 INFO L264 CegarLoopResult]: At program point L93(lines 12 100) the Hoare annotation is: (and (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1))) [2020-07-20 04:01:14,491 INFO L268 CegarLoopResult]: For program point L60(lines 60 68) no Hoare annotation was computed. [2020-07-20 04:01:14,491 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 100) no Hoare annotation was computed. [2020-07-20 04:01:14,491 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 04:01:14,492 INFO L264 CegarLoopResult]: At program point L77(lines 50 85) the Hoare annotation is: (let ((.cse0 (+ main_~main__i~0 1))) (and (<= .cse0 main_~main__nlen~0) (not (= 0 main_~__VERIFIER_assert__cond~0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= 0 main_~__VERIFIER_assert__cond~1)) (< 0 .cse0))) [2020-07-20 04:01:14,492 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 100) no Hoare annotation was computed. [2020-07-20 04:01:14,492 INFO L268 CegarLoopResult]: For program point L44(lines 44 85) no Hoare annotation was computed. [2020-07-20 04:01:14,493 INFO L264 CegarLoopResult]: At program point L67(lines 37 87) the Hoare annotation is: (let ((.cse3 (+ main_~main__i~0 1))) (let ((.cse0 (<= .cse3 main_~main__nlen~0)) (.cse1 (= |old(~__return_100~0)| ~__return_100~0)) (.cse2 (< 0 .cse3))) (or (and (not (= 0 main_~__VERIFIER_assert__cond~2)) .cse0 (not (= 0 main_~__VERIFIER_assert__cond~0)) .cse1 .cse2) (and .cse0 .cse1 (= 1 main_~__VERIFIER_assert__cond~0) .cse2)))) [2020-07-20 04:01:14,493 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2020-07-20 04:01:14,493 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 62) no Hoare annotation was computed. [2020-07-20 04:01:14,493 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 100) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2020-07-20 04:01:14,493 INFO L268 CegarLoopResult]: For program point L24(lines 24 94) no Hoare annotation was computed. [2020-07-20 04:01:14,493 INFO L268 CegarLoopResult]: For program point L74(lines 74 83) no Hoare annotation was computed. [2020-07-20 04:01:14,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:01:14 BoogieIcfgContainer [2020-07-20 04:01:14,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 04:01:14,528 INFO L168 Benchmark]: Toolchain (without parser) took 2177.27 ms. Allocated memory was 140.0 MB in the beginning and 234.4 MB in the end (delta: 94.4 MB). Free memory was 103.5 MB in the beginning and 185.7 MB in the end (delta: -82.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-07-20 04:01:14,529 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 04:01:14,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.91 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 93.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-20 04:01:14,533 INFO L168 Benchmark]: Boogie Preprocessor took 29.04 ms. Allocated memory is still 140.0 MB. Free memory was 93.3 MB in the beginning and 91.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-20 04:01:14,534 INFO L168 Benchmark]: RCFGBuilder took 460.74 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 91.8 MB in the beginning and 170.1 MB in the end (delta: -78.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-20 04:01:14,540 INFO L168 Benchmark]: TraceAbstraction took 1436.21 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 169.4 MB in the beginning and 185.7 MB in the end (delta: -16.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-07-20 04:01:14,552 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.91 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 93.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.04 ms. Allocated memory is still 140.0 MB. Free memory was 93.3 MB in the beginning and 91.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 460.74 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 91.8 MB in the beginning and 170.1 MB in the end (delta: -78.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1436.21 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 169.4 MB in the beginning and 185.7 MB in the end (delta: -16.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 62]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 46]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: \old(__return_100) == __return_100 && 0 < main__i + 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((main__i + 1 <= main__nlen && !(0 == __VERIFIER_assert__cond)) && \old(__return_100) == __return_100) && !(0 == __VERIFIER_assert__cond)) && 0 < main__i + 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((((!(0 == __VERIFIER_assert__cond) && main__i + 1 <= main__nlen) && !(0 == __VERIFIER_assert__cond)) && \old(__return_100) == __return_100) && 0 < main__i + 1) || (((main__i + 1 <= main__nlen && \old(__return_100) == __return_100) && 1 == __VERIFIER_assert__cond) && 0 < main__i + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 91 SDslu, 50 SDs, 0 SdLazy, 73 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 83 HoareAnnotationTreeSize, 7 FomulaSimplifications, 210 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 48 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...