/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=NARROWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/large_const.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 22:02:53,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 22:02:53,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 22:02:53,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 22:02:53,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 22:02:53,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 22:02:53,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 22:02:53,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 22:02:53,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 22:02:53,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 22:02:53,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 22:02:53,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 22:02:53,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 22:02:53,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 22:02:53,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 22:02:53,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 22:02:53,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 22:02:53,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 22:02:53,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 22:02:53,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 22:02:53,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 22:02:53,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 22:02:53,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 22:02:53,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 22:02:53,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 22:02:53,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 22:02:53,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 22:02:53,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 22:02:53,661 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 22:02:53,682 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 22:02:53,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 22:02:53,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 22:02:53,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 22:02:53,684 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 22:02:53,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 22:02:53,684 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 22:02:53,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 22:02:53,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 22:02:53,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 22:02:53,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 22:02:53,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 22:02:53,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 22:02:53,686 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 22:02:53,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 22:02:53,686 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 22:02:53,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 22:02:53,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 22:02:53,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 22:02:53,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 22:02:53,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 22:02:53,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 22:02:53,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 22:02:53,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 22:02:53,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 22:02:53,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 22:02:53,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 22:02:53,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 22:02:53,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 22:02:53,689 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=NARROWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=NARROWEST; [2020-08-18 22:02:54,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 22:02:54,025 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 22:02:54,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 22:02:54,032 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 22:02:54,033 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 22:02:54,034 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/large_const.i [2020-08-18 22:02:54,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a22d3678/2b7f1e3a3b82490487788c2fea87dba7/FLAG2404b91af [2020-08-18 22:02:54,540 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 22:02:54,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/large_const.i [2020-08-18 22:02:54,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a22d3678/2b7f1e3a3b82490487788c2fea87dba7/FLAG2404b91af [2020-08-18 22:02:54,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a22d3678/2b7f1e3a3b82490487788c2fea87dba7 [2020-08-18 22:02:54,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 22:02:54,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 22:02:54,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 22:02:54,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 22:02:54,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 22:02:54,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:02:54" (1/1) ... [2020-08-18 22:02:54,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f78b0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:02:54, skipping insertion in model container [2020-08-18 22:02:54,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:02:54" (1/1) ... [2020-08-18 22:02:54,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 22:02:54,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 22:02:55,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:02:55,196 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 22:02:55,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:02:55,231 INFO L208 MainTranslator]: Completed translation [2020-08-18 22:02:55,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:02:55 WrapperNode [2020-08-18 22:02:55,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 22:02:55,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 22:02:55,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 22:02:55,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 22:02:55,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:02:55" (1/1) ... [2020-08-18 22:02:55,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:02:55" (1/1) ... [2020-08-18 22:02:55,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:02:55" (1/1) ... [2020-08-18 22:02:55,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:02:55" (1/1) ... [2020-08-18 22:02:55,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:02:55" (1/1) ... [2020-08-18 22:02:55,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:02:55" (1/1) ... [2020-08-18 22:02:55,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:02:55" (1/1) ... [2020-08-18 22:02:55,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 22:02:55,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 22:02:55,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 22:02:55,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 22:02:55,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:02:55" (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 22:02:55,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 22:02:55,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 22:02:55,411 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 22:02:55,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-18 22:02:55,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 22:02:55,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 22:02:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 22:02:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 22:02:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-18 22:02:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 22:02:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 22:02:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 22:02:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 22:02:55,654 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 22:02:55,654 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-18 22:02:55,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:02:55 BoogieIcfgContainer [2020-08-18 22:02:55,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 22:02:55,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 22:02:55,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 22:02:55,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 22:02:55,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:02:54" (1/3) ... [2020-08-18 22:02:55,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa374fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:02:55, skipping insertion in model container [2020-08-18 22:02:55,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:02:55" (2/3) ... [2020-08-18 22:02:55,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa374fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:02:55, skipping insertion in model container [2020-08-18 22:02:55,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:02:55" (3/3) ... [2020-08-18 22:02:55,667 INFO L109 eAbstractionObserver]: Analyzing ICFG large_const.i [2020-08-18 22:02:55,678 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 22:02:55,685 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 22:02:55,700 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 22:02:55,729 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 22:02:55,729 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 22:02:55,730 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 22:02:55,730 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 22:02:55,730 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 22:02:55,730 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 22:02:55,730 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 22:02:55,730 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 22:02:55,757 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-08-18 22:02:55,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-18 22:02:55,765 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:02:55,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:02:55,767 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:02:55,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:02:55,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1992019723, now seen corresponding path program 1 times [2020-08-18 22:02:55,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:02:55,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161497456] [2020-08-18 22:02:55,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:02:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:55,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:02:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:55,994 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 22:02:55,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161497456] [2020-08-18 22:02:55,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:02:55,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 22:02:55,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869447785] [2020-08-18 22:02:56,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:02:56,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:02:56,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:02:56,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:02:56,021 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-08-18 22:02:56,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:02:56,132 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2020-08-18 22:02:56,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 22:02:56,134 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-08-18 22:02:56,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:02:56,143 INFO L225 Difference]: With dead ends: 48 [2020-08-18 22:02:56,143 INFO L226 Difference]: Without dead ends: 21 [2020-08-18 22:02:56,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:02:56,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-18 22:02:56,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-08-18 22:02:56,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-18 22:02:56,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-08-18 22:02:56,189 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 13 [2020-08-18 22:02:56,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:02:56,190 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-08-18 22:02:56,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:02:56,190 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-08-18 22:02:56,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-18 22:02:56,191 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:02:56,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:02:56,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 22:02:56,192 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:02:56,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:02:56,193 INFO L82 PathProgramCache]: Analyzing trace with hash 2018685173, now seen corresponding path program 1 times [2020-08-18 22:02:56,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:02:56,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723799021] [2020-08-18 22:02:56,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:02:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:56,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:02:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:56,330 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 22:02:56,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723799021] [2020-08-18 22:02:56,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:02:56,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 22:02:56,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752041541] [2020-08-18 22:02:56,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 22:02:56,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:02:56,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 22:02:56,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:02:56,339 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 7 states. [2020-08-18 22:02:56,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:02:56,490 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2020-08-18 22:02:56,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 22:02:56,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-08-18 22:02:56,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:02:56,495 INFO L225 Difference]: With dead ends: 41 [2020-08-18 22:02:56,495 INFO L226 Difference]: Without dead ends: 39 [2020-08-18 22:02:56,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:02:56,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-08-18 22:02:56,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2020-08-18 22:02:56,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-08-18 22:02:56,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2020-08-18 22:02:56,511 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 16 [2020-08-18 22:02:56,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:02:56,511 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-08-18 22:02:56,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 22:02:56,512 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2020-08-18 22:02:56,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-18 22:02:56,513 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:02:56,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:02:56,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 22:02:56,514 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:02:56,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:02:56,514 INFO L82 PathProgramCache]: Analyzing trace with hash 23130030, now seen corresponding path program 1 times [2020-08-18 22:02:56,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:02:56,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111329570] [2020-08-18 22:02:56,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:02:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:56,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:02:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:56,604 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 22:02:56,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111329570] [2020-08-18 22:02:56,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:02:56,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 22:02:56,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721383055] [2020-08-18 22:02:56,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 22:02:56,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:02:56,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 22:02:56,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:02:56,607 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 7 states. [2020-08-18 22:02:56,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:02:56,735 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2020-08-18 22:02:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 22:02:56,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-08-18 22:02:56,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:02:56,739 INFO L225 Difference]: With dead ends: 51 [2020-08-18 22:02:56,739 INFO L226 Difference]: Without dead ends: 49 [2020-08-18 22:02:56,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:02:56,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-08-18 22:02:56,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 37. [2020-08-18 22:02:56,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-08-18 22:02:56,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2020-08-18 22:02:56,751 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 17 [2020-08-18 22:02:56,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:02:56,752 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2020-08-18 22:02:56,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 22:02:56,752 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2020-08-18 22:02:56,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-18 22:02:56,753 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:02:56,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:02:56,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 22:02:56,754 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:02:56,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:02:56,754 INFO L82 PathProgramCache]: Analyzing trace with hash -786216596, now seen corresponding path program 1 times [2020-08-18 22:02:56,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:02:56,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138691185] [2020-08-18 22:02:56,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:02:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:56,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:02:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:56,903 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 22:02:56,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138691185] [2020-08-18 22:02:56,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:02:56,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 22:02:56,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409328031] [2020-08-18 22:02:56,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 22:02:56,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:02:56,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 22:02:56,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:02:56,906 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand 7 states. [2020-08-18 22:02:57,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:02:57,015 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2020-08-18 22:02:57,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 22:02:57,016 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-08-18 22:02:57,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:02:57,017 INFO L225 Difference]: With dead ends: 55 [2020-08-18 22:02:57,017 INFO L226 Difference]: Without dead ends: 53 [2020-08-18 22:02:57,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:02:57,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-08-18 22:02:57,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2020-08-18 22:02:57,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-08-18 22:02:57,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2020-08-18 22:02:57,029 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 17 [2020-08-18 22:02:57,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:02:57,029 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2020-08-18 22:02:57,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 22:02:57,029 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2020-08-18 22:02:57,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-18 22:02:57,030 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:02:57,031 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:02:57,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 22:02:57,031 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:02:57,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:02:57,031 INFO L82 PathProgramCache]: Analyzing trace with hash -986746962, now seen corresponding path program 1 times [2020-08-18 22:02:57,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:02:57,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429599661] [2020-08-18 22:02:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:02:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:57,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:02:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:57,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:02:57,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429599661] [2020-08-18 22:02:57,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:02:57,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 22:02:57,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26492088] [2020-08-18 22:02:57,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:02:57,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:02:57,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:02:57,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:02:57,088 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand 5 states. [2020-08-18 22:02:57,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:02:57,136 INFO L93 Difference]: Finished difference Result 61 states and 77 transitions. [2020-08-18 22:02:57,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 22:02:57,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-08-18 22:02:57,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:02:57,137 INFO L225 Difference]: With dead ends: 61 [2020-08-18 22:02:57,138 INFO L226 Difference]: Without dead ends: 29 [2020-08-18 22:02:57,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:02:57,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-08-18 22:02:57,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-08-18 22:02:57,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-08-18 22:02:57,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-08-18 22:02:57,146 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 20 [2020-08-18 22:02:57,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:02:57,146 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-08-18 22:02:57,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:02:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-08-18 22:02:57,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-18 22:02:57,147 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:02:57,147 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:02:57,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 22:02:57,148 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:02:57,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:02:57,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1470890089, now seen corresponding path program 1 times [2020-08-18 22:02:57,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:02:57,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223828826] [2020-08-18 22:02:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:02:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:57,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:02:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:57,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:02:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:57,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:02:57,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223828826] [2020-08-18 22:02:57,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:02:57,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 22:02:57,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259700300] [2020-08-18 22:02:57,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:02:57,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:02:57,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:02:57,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:02:57,240 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 8 states. [2020-08-18 22:02:57,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:02:57,377 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2020-08-18 22:02:57,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 22:02:57,377 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-08-18 22:02:57,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:02:57,379 INFO L225 Difference]: With dead ends: 48 [2020-08-18 22:02:57,379 INFO L226 Difference]: Without dead ends: 46 [2020-08-18 22:02:57,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-08-18 22:02:57,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-08-18 22:02:57,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-08-18 22:02:57,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-08-18 22:02:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2020-08-18 22:02:57,389 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 23 [2020-08-18 22:02:57,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:02:57,389 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2020-08-18 22:02:57,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:02:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2020-08-18 22:02:57,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-18 22:02:57,390 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:02:57,391 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:02:57,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 22:02:57,391 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:02:57,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:02:57,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1116377200, now seen corresponding path program 1 times [2020-08-18 22:02:57,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:02:57,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144961922] [2020-08-18 22:02:57,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:02:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:57,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:02:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:57,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 22:02:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:02:57,457 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:02:57,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144961922] [2020-08-18 22:02:57,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:02:57,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 22:02:57,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222711738] [2020-08-18 22:02:57,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:02:57,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:02:57,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:02:57,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:02:57,463 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 5 states. [2020-08-18 22:02:57,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:02:57,517 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2020-08-18 22:02:57,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 22:02:57,517 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-08-18 22:02:57,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:02:57,518 INFO L225 Difference]: With dead ends: 44 [2020-08-18 22:02:57,518 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 22:02:57,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:02:57,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 22:02:57,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 22:02:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 22:02:57,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 22:02:57,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-08-18 22:02:57,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:02:57,521 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 22:02:57,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:02:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 22:02:57,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 22:02:57,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 22:02:57,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 22:02:57,862 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 31 [2020-08-18 22:02:57,934 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-18 22:02:57,935 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 22:02:57,935 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 22:02:57,935 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-18 22:02:57,935 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 22:02:57,935 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 22:02:57,935 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-08-18 22:02:57,935 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-08-18 22:02:57,936 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-08-18 22:02:57,936 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-08-18 22:02:57,936 INFO L264 CegarLoopResult]: At program point L35-2(lines 35 39) the Hoare annotation is: (let ((.cse0 (<= main_~n~0 main_~j~0)) (.cse1 (<= 4000 main_~c1~0)) (.cse2 (<= 2000 main_~c2~0)) (.cse3 (<= main_~n~0 1)) (.cse4 (<= 10000 main_~c3~0))) (or (and .cse0 (<= main_~i~0 0) (<= main_~n~0 0)) (and .cse1 .cse0 (<= main_~n~0 main_~i~0) .cse2 .cse3 .cse4) (and .cse1 (<= 1 main_~i~0) (<= 2000 main_~k~0) .cse2 (<= main_~n~0 (+ main_~j~0 1)) .cse3 .cse4))) [2020-08-18 22:02:57,936 INFO L268 CegarLoopResult]: For program point L35-3(lines 35 39) no Hoare annotation was computed. [2020-08-18 22:02:57,936 INFO L268 CegarLoopResult]: For program point L29(lines 29 32) no Hoare annotation was computed. [2020-08-18 22:02:57,936 INFO L268 CegarLoopResult]: For program point L27(lines 27 32) no Hoare annotation was computed. [2020-08-18 22:02:57,938 INFO L264 CegarLoopResult]: At program point L29-2(lines 23 33) the Hoare annotation is: (let ((.cse0 (<= 4000 main_~c1~0)) (.cse1 (<= 2000 main_~c2~0)) (.cse2 (<= 10000 main_~c3~0))) (or (and .cse0 (<= main_~i~0 0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 0 main_~i~0) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) .cse1 .cse2) (and .cse0 (<= 1 main_~i~0) (<= 2000 main_~k~0) .cse1 (<= main_~n~0 1) .cse2))) [2020-08-18 22:02:57,939 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 41) no Hoare annotation was computed. [2020-08-18 22:02:57,939 INFO L268 CegarLoopResult]: For program point L23-2(lines 23 33) no Hoare annotation was computed. [2020-08-18 22:02:57,947 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 41) no Hoare annotation was computed. [2020-08-18 22:02:57,948 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 2000 main_~k~0) (<= 2000 main_~c2~0) (<= main_~n~0 (+ main_~j~0 1)) (<= main_~n~0 1) (<= 10000 main_~c3~0)) [2020-08-18 22:02:57,948 INFO L268 CegarLoopResult]: For program point L36-1(line 36) no Hoare annotation was computed. [2020-08-18 22:02:57,948 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 41) the Hoare annotation is: true [2020-08-18 22:02:57,949 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-08-18 22:02:57,949 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-08-18 22:02:57,949 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-08-18 22:02:57,949 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-08-18 22:02:57,950 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-08-18 22:02:57,950 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-08-18 22:02:57,950 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-08-18 22:02:57,950 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-08-18 22:02:57,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 10:02:57 BoogieIcfgContainer [2020-08-18 22:02:57,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 22:02:57,983 INFO L168 Benchmark]: Toolchain (without parser) took 3046.02 ms. Allocated memory was 140.5 MB in the beginning and 243.3 MB in the end (delta: 102.8 MB). Free memory was 103.7 MB in the beginning and 217.1 MB in the end (delta: -113.4 MB). Peak memory consumption was 112.1 MB. Max. memory is 7.1 GB. [2020-08-18 22:02:57,990 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 22:02:57,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.80 ms. Allocated memory is still 140.5 MB. Free memory was 103.5 MB in the beginning and 93.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-08-18 22:02:57,993 INFO L168 Benchmark]: Boogie Preprocessor took 113.99 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 93.7 MB in the beginning and 181.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-08-18 22:02:57,993 INFO L168 Benchmark]: RCFGBuilder took 311.75 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 166.0 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2020-08-18 22:02:57,994 INFO L168 Benchmark]: TraceAbstraction took 2318.98 ms. Allocated memory was 202.9 MB in the beginning and 243.3 MB in the end (delta: 40.4 MB). Free memory was 166.0 MB in the beginning and 217.1 MB in the end (delta: -51.1 MB). Peak memory consumption was 112.1 MB. Max. memory is 7.1 GB. [2020-08-18 22:02:58,007 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 296.80 ms. Allocated memory is still 140.5 MB. Free memory was 103.5 MB in the beginning and 93.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.99 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 93.7 MB in the beginning and 181.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 311.75 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 166.0 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2318.98 ms. Allocated memory was 202.9 MB in the beginning and 243.3 MB in the end (delta: 40.4 MB). Free memory was 166.0 MB in the beginning and 217.1 MB in the end (delta: -51.1 MB). Peak memory consumption was 112.1 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: 23]: Loop Invariant Derived loop invariant: (((((((4000 <= c1 && i <= 0) && 10000 <= c3 + k) && 0 <= i) && 4000 <= c1 + k) && 2000 <= c2 + k) && 2000 <= c2) && 10000 <= c3) || (((((4000 <= c1 && 1 <= i) && 2000 <= k) && 2000 <= c2) && n <= 1) && 10000 <= c3) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((n <= j && i <= 0) && n <= 0) || (((((4000 <= c1 && n <= j) && n <= i) && 2000 <= c2) && n <= 1) && 10000 <= c3)) || ((((((4000 <= c1 && 1 <= i) && 2000 <= k) && 2000 <= c2) && n <= j + 1) && n <= 1) && 10000 <= c3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 164 SDtfs, 149 SDslu, 456 SDs, 0 SdLazy, 260 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=4, 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, 7 MinimizatonAttempts, 43 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 24 NumberOfFragments, 134 HoareAnnotationTreeSize, 14 FomulaSimplifications, 716 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 389 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 5177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 11/18 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...