/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 23:39:59,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 23:40:00,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 23:40:00,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 23:40:00,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 23:40:00,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 23:40:00,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 23:40:00,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 23:40:00,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 23:40:00,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 23:40:00,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 23:40:00,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 23:40:00,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 23:40:00,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 23:40:00,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 23:40:00,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 23:40:00,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 23:40:00,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 23:40:00,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 23:40:00,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 23:40:00,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 23:40:00,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 23:40:00,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 23:40:00,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 23:40:00,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 23:40:00,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 23:40:00,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 23:40:00,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 23:40:00,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 23:40:00,157 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 23:40:00,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 23:40:00,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 23:40:00,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 23:40:00,159 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 23:40:00,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 23:40:00,160 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 23:40:00,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 23:40:00,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 23:40:00,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 23:40:00,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 23:40:00,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 23:40:00,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 23:40:00,163 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 23:40:00,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 23:40:00,163 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 23:40:00,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 23:40:00,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 23:40:00,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 23:40:00,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 23:40:00,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 23:40:00,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 23:40:00,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 23:40:00,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 23:40:00,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 23:40:00,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 23:40:00,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 23:40:00,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 23:40:00,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 23:40:00,166 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; [2020-08-18 23:40:00,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 23:40:00,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 23:40:00,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 23:40:00,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 23:40:00,535 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 23:40:00,536 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2020-08-18 23:40:00,598 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13eaf6fc1/7481f7750266458ba5b97d151ca537a8/FLAGd9ccaf710 [2020-08-18 23:40:01,036 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 23:40:01,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2020-08-18 23:40:01,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13eaf6fc1/7481f7750266458ba5b97d151ca537a8/FLAGd9ccaf710 [2020-08-18 23:40:01,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13eaf6fc1/7481f7750266458ba5b97d151ca537a8 [2020-08-18 23:40:01,442 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 23:40:01,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 23:40:01,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 23:40:01,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 23:40:01,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 23:40:01,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:40:01" (1/1) ... [2020-08-18 23:40:01,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b11532c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:40:01, skipping insertion in model container [2020-08-18 23:40:01,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:40:01" (1/1) ... [2020-08-18 23:40:01,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 23:40:01,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 23:40:01,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:40:01,683 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 23:40:01,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:40:01,715 INFO L208 MainTranslator]: Completed translation [2020-08-18 23:40:01,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:40:01 WrapperNode [2020-08-18 23:40:01,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 23:40:01,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 23:40:01,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 23:40:01,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 23:40:01,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:40:01" (1/1) ... [2020-08-18 23:40:01,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:40:01" (1/1) ... [2020-08-18 23:40:01,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:40:01" (1/1) ... [2020-08-18 23:40:01,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:40:01" (1/1) ... [2020-08-18 23:40:01,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:40:01" (1/1) ... [2020-08-18 23:40:01,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:40:01" (1/1) ... [2020-08-18 23:40:01,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:40:01" (1/1) ... [2020-08-18 23:40:01,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 23:40:01,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 23:40:01,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 23:40:01,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 23:40:01,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:40:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 23:40:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 23:40:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 23:40:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 23:40:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-18 23:40:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 23:40:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 23:40:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 23:40:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 23:40:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-18 23:40:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 23:40:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 23:40:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 23:40:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 23:40:02,099 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 23:40:02,099 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 23:40:02,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:40:02 BoogieIcfgContainer [2020-08-18 23:40:02,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 23:40:02,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 23:40:02,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 23:40:02,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 23:40:02,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:40:01" (1/3) ... [2020-08-18 23:40:02,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1f75e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:40:02, skipping insertion in model container [2020-08-18 23:40:02,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:40:01" (2/3) ... [2020-08-18 23:40:02,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1f75e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:40:02, skipping insertion in model container [2020-08-18 23:40:02,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:40:02" (3/3) ... [2020-08-18 23:40:02,117 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2020-08-18 23:40:02,128 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 23:40:02,134 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 23:40:02,149 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 23:40:02,172 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 23:40:02,172 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 23:40:02,172 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 23:40:02,172 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 23:40:02,172 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 23:40:02,173 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 23:40:02,173 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 23:40:02,173 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 23:40:02,192 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-08-18 23:40:02,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-18 23:40:02,198 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:40:02,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:40:02,200 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:40:02,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:40:02,206 INFO L82 PathProgramCache]: Analyzing trace with hash -362650722, now seen corresponding path program 1 times [2020-08-18 23:40:02,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:40:02,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051963479] [2020-08-18 23:40:02,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:40:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:40:02,633 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 17 [2020-08-18 23:40:02,869 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 16 [2020-08-18 23:40:02,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:40:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:40:02,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:40:02,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051963479] [2020-08-18 23:40:02,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:40:02,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 23:40:02,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631296820] [2020-08-18 23:40:02,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 23:40:02,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:40:02,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 23:40:02,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 23:40:02,941 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2020-08-18 23:40:03,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:40:03,105 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-08-18 23:40:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 23:40:03,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-08-18 23:40:03,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:40:03,115 INFO L225 Difference]: With dead ends: 47 [2020-08-18 23:40:03,116 INFO L226 Difference]: Without dead ends: 15 [2020-08-18 23:40:03,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-18 23:40:03,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-08-18 23:40:03,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-08-18 23:40:03,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-08-18 23:40:03,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-08-18 23:40:03,156 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2020-08-18 23:40:03,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:40:03,157 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-08-18 23:40:03,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 23:40:03,157 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-08-18 23:40:03,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-18 23:40:03,158 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:40:03,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:40:03,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 23:40:03,159 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:40:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:40:03,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1126137131, now seen corresponding path program 1 times [2020-08-18 23:40:03,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:40:03,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981673957] [2020-08-18 23:40:03,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:40:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:40:03,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:40:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:40:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:40:03,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981673957] [2020-08-18 23:40:03,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:40:03,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 23:40:03,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976980956] [2020-08-18 23:40:03,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 23:40:03,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:40:03,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 23:40:03,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-18 23:40:03,362 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 8 states. [2020-08-18 23:40:03,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:40:03,456 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-08-18 23:40:03,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 23:40:03,457 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-08-18 23:40:03,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:40:03,458 INFO L225 Difference]: With dead ends: 22 [2020-08-18 23:40:03,459 INFO L226 Difference]: Without dead ends: 16 [2020-08-18 23:40:03,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-08-18 23:40:03,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-08-18 23:40:03,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-08-18 23:40:03,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-08-18 23:40:03,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-08-18 23:40:03,465 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2020-08-18 23:40:03,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:40:03,466 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-08-18 23:40:03,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 23:40:03,466 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-08-18 23:40:03,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-18 23:40:03,467 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:40:03,467 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:40:03,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 23:40:03,468 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:40:03,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:40:03,468 INFO L82 PathProgramCache]: Analyzing trace with hash 975587966, now seen corresponding path program 2 times [2020-08-18 23:40:03,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:40:03,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144134840] [2020-08-18 23:40:03,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:40:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:40:03,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:40:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:40:03,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:40:03,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144134840] [2020-08-18 23:40:03,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:40:03,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 23:40:03,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241971685] [2020-08-18 23:40:03,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 23:40:03,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:40:03,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 23:40:03,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-18 23:40:03,700 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 9 states. [2020-08-18 23:40:03,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:40:03,795 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-08-18 23:40:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 23:40:03,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-08-18 23:40:03,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:40:03,796 INFO L225 Difference]: With dead ends: 16 [2020-08-18 23:40:03,796 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 23:40:03,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-08-18 23:40:03,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 23:40:03,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 23:40:03,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 23:40:03,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 23:40:03,798 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-08-18 23:40:03,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:40:03,798 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 23:40:03,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 23:40:03,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 23:40:03,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 23:40:03,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 23:40:03,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 23:40:03,865 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-18 23:40:03,865 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 23:40:03,866 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 23:40:03,866 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-18 23:40:03,866 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 23:40:03,866 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 23:40:03,866 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-08-18 23:40:03,867 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-08-18 23:40:03,867 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-08-18 23:40:03,867 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-08-18 23:40:03,867 INFO L268 CegarLoopResult]: For program point L27(lines 27 29) no Hoare annotation was computed. [2020-08-18 23:40:03,867 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 31) no Hoare annotation was computed. [2020-08-18 23:40:03,868 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-08-18 23:40:03,868 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 31) no Hoare annotation was computed. [2020-08-18 23:40:03,868 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 31) the Hoare annotation is: true [2020-08-18 23:40:03,868 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (= (+ main_~y~0 main_~z~0) 0) [2020-08-18 23:40:03,868 INFO L264 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~i~0 main_~y~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-08-18 23:40:03,869 INFO L268 CegarLoopResult]: For program point L22-3(lines 13 31) no Hoare annotation was computed. [2020-08-18 23:40:03,869 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-08-18 23:40:03,869 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-08-18 23:40:03,869 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-08-18 23:40:03,869 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-08-18 23:40:03,869 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-08-18 23:40:03,870 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-08-18 23:40:03,870 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-08-18 23:40:03,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 11:40:03 BoogieIcfgContainer [2020-08-18 23:40:03,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 23:40:03,892 INFO L168 Benchmark]: Toolchain (without parser) took 2447.40 ms. Allocated memory was 140.0 MB in the beginning and 235.4 MB in the end (delta: 95.4 MB). Free memory was 103.0 MB in the beginning and 155.0 MB in the end (delta: -52.1 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2020-08-18 23:40:03,893 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 23:40:03,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.80 ms. Allocated memory is still 140.0 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-08-18 23:40:03,895 INFO L168 Benchmark]: Boogie Preprocessor took 109.71 ms. Allocated memory was 140.0 MB in the beginning and 200.8 MB in the end (delta: 60.8 MB). Free memory was 93.2 MB in the beginning and 178.8 MB in the end (delta: -85.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-18 23:40:03,896 INFO L168 Benchmark]: RCFGBuilder took 276.04 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 165.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-18 23:40:03,897 INFO L168 Benchmark]: TraceAbstraction took 1784.95 ms. Allocated memory was 200.8 MB in the beginning and 235.4 MB in the end (delta: 34.6 MB). Free memory was 165.2 MB in the beginning and 155.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. [2020-08-18 23:40:03,902 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 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 271.80 ms. Allocated memory is still 140.0 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.71 ms. Allocated memory was 140.0 MB in the beginning and 200.8 MB in the end (delta: 60.8 MB). Free memory was 93.2 MB in the beginning and 178.8 MB in the end (delta: -85.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 276.04 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 165.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1784.95 ms. Allocated memory was 200.8 MB in the beginning and 235.4 MB in the end (delta: 34.6 MB). Free memory was 165.2 MB in the beginning and 155.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 22]: Loop Invariant Derived loop invariant: i + y + z <= x + j && x + j <= i + y + z - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 25 SDslu, 152 SDs, 0 SdLazy, 104 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 10 PreInvPairs, 15 NumberOfFragments, 27 HoareAnnotationTreeSize, 10 FomulaSimplifications, 73 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 46 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 3526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 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...