/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 NUM_VARIABLES --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/ldv-regression/test11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 01:28:49,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 01:28:49,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 01:28:49,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-20 01:28:49,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 01:28:49,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 01:28:49,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 01:28:49,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 01:28:49,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 01:28:49,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 01:28:49,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 01:28:49,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 01:28:49,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 01:28:49,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 01:28:49,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 01:28:49,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 01:28:49,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 01:28:49,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 01:28:49,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 01:28:49,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 01:28:49,542 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 01:28:49,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 01:28:49,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 01:28:49,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 01:28:49,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 01:28:49,581 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 01:28:49,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 01:28:49,581 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 01:28:49,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 01:28:49,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 01:28:49,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 01:28:49,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 01:28:49,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 01:28:49,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 01:28:49,582 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 01:28:49,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 01:28:49,583 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 01:28:49,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 01:28:49,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 01:28:49,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 01:28:49,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 01:28:49,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 01:28:49,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:28:49,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 01:28:49,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 01:28:49,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 01:28:49,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 01:28:49,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 01:28:49,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 01:28:49,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 01:28:49,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES 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 01:28:49,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 01:28:49,897 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 01:28:49,901 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 01:28:49,902 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 01:28:49,902 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 01:28:49,903 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test11.c [2020-07-20 01:28:49,966 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64b1d927/348c2667e6d74160b931571d28f8d18d/FLAG8ff794638 [2020-07-20 01:28:50,419 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 01:28:50,420 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test11.c [2020-07-20 01:28:50,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64b1d927/348c2667e6d74160b931571d28f8d18d/FLAG8ff794638 [2020-07-20 01:28:50,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64b1d927/348c2667e6d74160b931571d28f8d18d [2020-07-20 01:28:50,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 01:28:50,852 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 01:28:50,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 01:28:50,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 01:28:50,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 01:28:50,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:28:50" (1/1) ... [2020-07-20 01:28:50,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b396ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:50, skipping insertion in model container [2020-07-20 01:28:50,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:28:50" (1/1) ... [2020-07-20 01:28:50,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 01:28:50,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 01:28:51,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:28:51,082 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 01:28:51,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:28:51,117 INFO L208 MainTranslator]: Completed translation [2020-07-20 01:28:51,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:51 WrapperNode [2020-07-20 01:28:51,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 01:28:51,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 01:28:51,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 01:28:51,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 01:28:51,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:51" (1/1) ... [2020-07-20 01:28:51,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:51" (1/1) ... [2020-07-20 01:28:51,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:51" (1/1) ... [2020-07-20 01:28:51,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:51" (1/1) ... [2020-07-20 01:28:51,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:51" (1/1) ... [2020-07-20 01:28:51,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:51" (1/1) ... [2020-07-20 01:28:51,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:51" (1/1) ... [2020-07-20 01:28:51,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 01:28:51,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 01:28:51,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 01:28:51,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 01:28:51,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:51" (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 01:28:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 01:28:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 01:28:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-07-20 01:28:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 01:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 01:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 01:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-20 01:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-07-20 01:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 01:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 01:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 01:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 01:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 01:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 01:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 01:28:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 01:28:51,622 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 01:28:51,623 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 01:28:51,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:28:51 BoogieIcfgContainer [2020-07-20 01:28:51,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 01:28:51,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 01:28:51,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 01:28:51,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 01:28:51,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:28:50" (1/3) ... [2020-07-20 01:28:51,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d7ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:28:51, skipping insertion in model container [2020-07-20 01:28:51,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:51" (2/3) ... [2020-07-20 01:28:51,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d7ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:28:51, skipping insertion in model container [2020-07-20 01:28:51,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:28:51" (3/3) ... [2020-07-20 01:28:51,643 INFO L109 eAbstractionObserver]: Analyzing ICFG test11.c [2020-07-20 01:28:51,656 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 01:28:51,662 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 01:28:51,675 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 01:28:51,696 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 01:28:51,696 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 01:28:51,697 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 01:28:51,697 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 01:28:51,697 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 01:28:51,697 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 01:28:51,697 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 01:28:51,697 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 01:28:51,716 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-20 01:28:51,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-20 01:28:51,723 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:28:51,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:28:51,725 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:28:51,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:28:51,731 INFO L82 PathProgramCache]: Analyzing trace with hash -722462527, now seen corresponding path program 1 times [2020-07-20 01:28:51,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:28:51,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099997096] [2020-07-20 01:28:51,740 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4dfb0afe [2020-07-20 01:28:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:28:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:28:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:28:52,059 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 01:28:52,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099997096] [2020-07-20 01:28:52,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:28:52,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 01:28:52,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994684972] [2020-07-20 01:28:52,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 01:28:52,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:28:52,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 01:28:52,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 01:28:52,086 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2020-07-20 01:28:52,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:28:52,197 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2020-07-20 01:28:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 01:28:52,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-20 01:28:52,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:28:52,209 INFO L225 Difference]: With dead ends: 31 [2020-07-20 01:28:52,209 INFO L226 Difference]: Without dead ends: 19 [2020-07-20 01:28:52,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 01:28:52,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-20 01:28:52,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-20 01:28:52,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-20 01:28:52,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2020-07-20 01:28:52,248 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2020-07-20 01:28:52,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:28:52,249 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2020-07-20 01:28:52,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 01:28:52,249 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-07-20 01:28:52,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-20 01:28:52,250 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:28:52,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:28:52,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 01:28:52,251 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:28:52,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:28:52,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1499811687, now seen corresponding path program 1 times [2020-07-20 01:28:52,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:28:52,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070184684] [2020-07-20 01:28:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4dfb0afe [2020-07-20 01:28:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:28:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:28:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:28:52,405 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 01:28:52,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070184684] [2020-07-20 01:28:52,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:28:52,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 01:28:52,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705161768] [2020-07-20 01:28:52,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 01:28:52,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:28:52,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 01:28:52,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 01:28:52,412 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 6 states. [2020-07-20 01:28:52,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:28:52,525 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-07-20 01:28:52,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 01:28:52,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-07-20 01:28:52,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:28:52,527 INFO L225 Difference]: With dead ends: 21 [2020-07-20 01:28:52,527 INFO L226 Difference]: Without dead ends: 19 [2020-07-20 01:28:52,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 01:28:52,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-20 01:28:52,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-20 01:28:52,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-20 01:28:52,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-07-20 01:28:52,535 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 17 [2020-07-20 01:28:52,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:28:52,536 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-07-20 01:28:52,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 01:28:52,536 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-07-20 01:28:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-20 01:28:52,537 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:28:52,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:28:52,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 01:28:52,538 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:28:52,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:28:52,539 INFO L82 PathProgramCache]: Analyzing trace with hash -750476091, now seen corresponding path program 1 times [2020-07-20 01:28:52,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:28:52,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733561365] [2020-07-20 01:28:52,540 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4dfb0afe [2020-07-20 01:28:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:28:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:28:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:28:52,636 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 01:28:52,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733561365] [2020-07-20 01:28:52,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:28:52,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 01:28:52,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557180656] [2020-07-20 01:28:52,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 01:28:52,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:28:52,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 01:28:52,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 01:28:52,640 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 5 states. [2020-07-20 01:28:52,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:28:52,716 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-07-20 01:28:52,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 01:28:52,716 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-07-20 01:28:52,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:28:52,717 INFO L225 Difference]: With dead ends: 19 [2020-07-20 01:28:52,717 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 01:28:52,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 01:28:52,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 01:28:52,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 01:28:52,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 01:28:52,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 01:28:52,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-07-20 01:28:52,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:28:52,719 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 01:28:52,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 01:28:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 01:28:52,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 01:28:52,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 01:28:52,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 01:28:52,789 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 01:28:52,789 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#a~0.base| |old(~#a~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#valid| |old(#valid)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |old(#length)| |#length|)) [2020-07-20 01:28:52,790 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 01:28:52,790 INFO L268 CegarLoopResult]: For program point get_dummyFINAL(lines 7 10) no Hoare annotation was computed. [2020-07-20 01:28:52,790 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-07-20 01:28:52,790 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true [2020-07-20 01:28:52,790 INFO L268 CegarLoopResult]: For program point get_dummyEXIT(lines 7 10) no Hoare annotation was computed. [2020-07-20 01:28:52,791 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 01:28:52,791 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 01:28:52,791 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 01:28:52,791 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 01:28:52,791 INFO L264 CegarLoopResult]: At program point L25(lines 12 32) the Hoare annotation is: false [2020-07-20 01:28:52,791 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 32) no Hoare annotation was computed. [2020-07-20 01:28:52,792 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-07-20 01:28:52,792 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= |main_~#c~0.offset| main_~pc~0.offset) (= main_~pc~0.base |main_~#c~0.base|) (not (= 0 main_~pc~0.base))) [2020-07-20 01:28:52,792 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-07-20 01:28:52,792 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-07-20 01:28:52,792 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 32) no Hoare annotation was computed. [2020-07-20 01:28:52,793 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2020-07-20 01:28:52,793 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 32) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-20 01:28:52,793 INFO L268 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed. [2020-07-20 01:28:52,793 INFO L268 CegarLoopResult]: For program point L18(lines 18 19) no Hoare annotation was computed. [2020-07-20 01:28:52,793 INFO L268 CegarLoopResult]: For program point L18-2(lines 18 21) no Hoare annotation was computed. [2020-07-20 01:28:52,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:28:52 BoogieIcfgContainer [2020-07-20 01:28:52,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 01:28:52,808 INFO L168 Benchmark]: Toolchain (without parser) took 1956.42 ms. Allocated memory was 137.9 MB in the beginning and 234.4 MB in the end (delta: 96.5 MB). Free memory was 102.4 MB in the beginning and 190.4 MB in the end (delta: -88.0 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2020-07-20 01:28:52,809 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 01:28:52,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.87 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 92.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-20 01:28:52,811 INFO L168 Benchmark]: Boogie Preprocessor took 128.09 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 92.0 MB in the beginning and 180.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-20 01:28:52,812 INFO L168 Benchmark]: RCFGBuilder took 375.96 ms. Allocated memory is still 202.4 MB. Free memory was 180.1 MB in the beginning and 163.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-07-20 01:28:52,813 INFO L168 Benchmark]: TraceAbstraction took 1170.20 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 162.9 MB in the beginning and 190.4 MB in the end (delta: -27.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-20 01:28:52,817 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.87 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 92.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.09 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 92.0 MB in the beginning and 180.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 375.96 ms. Allocated memory is still 202.4 MB. Free memory was 180.1 MB in the beginning and 163.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1170.20 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 162.9 MB in the beginning and 190.4 MB in the end (delta: -27.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: 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: 12]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 34 SDslu, 65 SDs, 0 SdLazy, 103 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 47 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 2837 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...