/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/eca-rers2012/Problem14_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 21:59:51,252 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-18 21:59:51,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 21:59:51,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 21:59:51,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 21:59:51,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 21:59:51,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 21:59:51,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 21:59:51,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 21:59:51,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 21:59:51,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 21:59:51,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 21:59:51,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 21:59:51,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 21:59:51,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 21:59:51,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 21:59:51,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 21:59:51,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 21:59:51,371 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 21:59:51,412 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 21:59:51,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 21:59:51,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 21:59:51,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 21:59:51,415 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 21:59:51,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 21:59:51,415 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 21:59:51,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 21:59:51,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 21:59:51,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 21:59:51,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 21:59:51,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 21:59:51,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 21:59:51,418 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 21:59:51,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 21:59:51,418 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 21:59:51,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 21:59:51,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 21:59:51,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 21:59:51,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 21:59:51,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 21:59:51,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:59:51,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 21:59:51,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 21:59:51,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 21:59:51,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 21:59:51,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 21:59:51,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 21:59:51,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 21:59:51,421 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 21:59:51,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 21:59:51,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 21:59:51,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 21:59:51,754 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 21:59:51,755 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 21:59:51,756 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-08-18 21:59:51,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1b1b93a8/e52056b36bd546148df1fefb73dc843a/FLAG54532d707 [2020-08-18 21:59:52,410 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 21:59:52,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-08-18 21:59:52,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1b1b93a8/e52056b36bd546148df1fefb73dc843a/FLAG54532d707 [2020-08-18 21:59:52,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1b1b93a8/e52056b36bd546148df1fefb73dc843a [2020-08-18 21:59:52,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 21:59:52,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 21:59:52,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 21:59:52,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 21:59:52,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 21:59:52,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:59:52" (1/1) ... [2020-08-18 21:59:52,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:59:52, skipping insertion in model container [2020-08-18 21:59:52,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:59:52" (1/1) ... [2020-08-18 21:59:52,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 21:59:52,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 21:59:53,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:59:53,375 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 21:59:53,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:59:53,512 INFO L208 MainTranslator]: Completed translation [2020-08-18 21:59:53,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:59:53 WrapperNode [2020-08-18 21:59:53,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 21:59:53,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 21:59:53,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 21:59:53,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 21:59:53,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:59:53" (1/1) ... [2020-08-18 21:59:53,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:59:53" (1/1) ... [2020-08-18 21:59:53,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:59:53" (1/1) ... [2020-08-18 21:59:53,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:59:53" (1/1) ... [2020-08-18 21:59:53,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:59:53" (1/1) ... [2020-08-18 21:59:53,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:59:53" (1/1) ... [2020-08-18 21:59:53,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:59:53" (1/1) ... [2020-08-18 21:59:53,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 21:59:53,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 21:59:53,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 21:59:53,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 21:59:53,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:59:53" (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 21:59:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 21:59:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 21:59:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 21:59:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 21:59:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 21:59:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 21:59:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 21:59:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 21:59:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 21:59:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 21:59:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 21:59:55,138 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 21:59:55,139 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 21:59:55,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:59:55 BoogieIcfgContainer [2020-08-18 21:59:55,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 21:59:55,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 21:59:55,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 21:59:55,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 21:59:55,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 09:59:52" (1/3) ... [2020-08-18 21:59:55,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307023e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:59:55, skipping insertion in model container [2020-08-18 21:59:55,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:59:53" (2/3) ... [2020-08-18 21:59:55,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307023e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:59:55, skipping insertion in model container [2020-08-18 21:59:55,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:59:55" (3/3) ... [2020-08-18 21:59:55,156 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2020-08-18 21:59:55,167 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 21:59:55,176 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 21:59:55,191 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 21:59:55,219 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 21:59:55,220 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 21:59:55,220 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 21:59:55,220 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 21:59:55,221 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 21:59:55,221 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 21:59:55,221 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 21:59:55,221 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 21:59:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-08-18 21:59:55,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-08-18 21:59:55,258 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:59:55,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:59:55,260 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:59:55,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:59:55,266 INFO L82 PathProgramCache]: Analyzing trace with hash 406410443, now seen corresponding path program 1 times [2020-08-18 21:59:55,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:59:55,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930753621] [2020-08-18 21:59:55,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:59:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:59:55,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:59:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:59:55,701 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 21:59:55,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930753621] [2020-08-18 21:59:55,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:59:55,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 21:59:55,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513619276] [2020-08-18 21:59:55,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 21:59:55,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:59:55,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 21:59:55,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 21:59:55,735 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-08-18 21:59:58,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:59:58,414 INFO L93 Difference]: Finished difference Result 886 states and 1612 transitions. [2020-08-18 21:59:58,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 21:59:58,416 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-08-18 21:59:58,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:59:58,454 INFO L225 Difference]: With dead ends: 886 [2020-08-18 21:59:58,455 INFO L226 Difference]: Without dead ends: 564 [2020-08-18 21:59:58,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:59:58,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-08-18 21:59:58,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-08-18 21:59:58,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-08-18 21:59:58,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 861 transitions. [2020-08-18 21:59:58,632 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 861 transitions. Word has length 54 [2020-08-18 21:59:58,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:59:58,634 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 861 transitions. [2020-08-18 21:59:58,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 21:59:58,635 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 861 transitions. [2020-08-18 21:59:58,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-08-18 21:59:58,658 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:59:58,658 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:59:58,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 21:59:58,659 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:59:58,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:59:58,659 INFO L82 PathProgramCache]: Analyzing trace with hash -724645666, now seen corresponding path program 1 times [2020-08-18 21:59:58,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:59:58,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608104444] [2020-08-18 21:59:58,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:59:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:59:58,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:59:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:59:58,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:59:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:59:58,936 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:59:58,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608104444] [2020-08-18 21:59:58,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:59:58,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 21:59:58,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678950221] [2020-08-18 21:59:58,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 21:59:58,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:59:58,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 21:59:58,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:59:58,941 INFO L87 Difference]: Start difference. First operand 560 states and 861 transitions. Second operand 7 states. [2020-08-18 22:00:00,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:00,999 INFO L93 Difference]: Finished difference Result 1518 states and 2374 transitions. [2020-08-18 22:00:01,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 22:00:01,000 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 148 [2020-08-18 22:00:01,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:01,007 INFO L225 Difference]: With dead ends: 1518 [2020-08-18 22:00:01,008 INFO L226 Difference]: Without dead ends: 964 [2020-08-18 22:00:01,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 22:00:01,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-08-18 22:00:01,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 944. [2020-08-18 22:00:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-08-18 22:00:01,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1336 transitions. [2020-08-18 22:00:01,062 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1336 transitions. Word has length 148 [2020-08-18 22:00:01,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:01,063 INFO L479 AbstractCegarLoop]: Abstraction has 944 states and 1336 transitions. [2020-08-18 22:00:01,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 22:00:01,063 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1336 transitions. [2020-08-18 22:00:01,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-08-18 22:00:01,068 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:01,068 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:01,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 22:00:01,069 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:01,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:01,069 INFO L82 PathProgramCache]: Analyzing trace with hash 2026240930, now seen corresponding path program 1 times [2020-08-18 22:00:01,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:01,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45436385] [2020-08-18 22:00:01,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:01,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:01,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:00:01,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45436385] [2020-08-18 22:00:01,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:00:01,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 22:00:01,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486361438] [2020-08-18 22:00:01,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:00:01,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:01,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:00:01,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:00:01,396 INFO L87 Difference]: Start difference. First operand 944 states and 1336 transitions. Second operand 8 states. [2020-08-18 22:00:03,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:03,490 INFO L93 Difference]: Finished difference Result 2490 states and 3798 transitions. [2020-08-18 22:00:03,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 22:00:03,492 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 194 [2020-08-18 22:00:03,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:03,509 INFO L225 Difference]: With dead ends: 2490 [2020-08-18 22:00:03,509 INFO L226 Difference]: Without dead ends: 1552 [2020-08-18 22:00:03,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-18 22:00:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2020-08-18 22:00:03,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1518. [2020-08-18 22:00:03,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-08-18 22:00:03,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2119 transitions. [2020-08-18 22:00:03,600 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2119 transitions. Word has length 194 [2020-08-18 22:00:03,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:03,601 INFO L479 AbstractCegarLoop]: Abstraction has 1518 states and 2119 transitions. [2020-08-18 22:00:03,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:00:03,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2119 transitions. [2020-08-18 22:00:03,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-08-18 22:00:03,606 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:03,606 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:03,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 22:00:03,607 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:03,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:03,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1200176176, now seen corresponding path program 1 times [2020-08-18 22:00:03,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:03,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719018610] [2020-08-18 22:00:03,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:03,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:03,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:03,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 22:00:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:03,970 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 94 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-18 22:00:03,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719018610] [2020-08-18 22:00:03,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:00:03,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 22:00:03,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444587016] [2020-08-18 22:00:03,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:00:03,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:03,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:00:03,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:00:03,974 INFO L87 Difference]: Start difference. First operand 1518 states and 2119 transitions. Second operand 8 states. [2020-08-18 22:00:05,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:05,822 INFO L93 Difference]: Finished difference Result 3412 states and 4693 transitions. [2020-08-18 22:00:05,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 22:00:05,823 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 213 [2020-08-18 22:00:05,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:05,834 INFO L225 Difference]: With dead ends: 3412 [2020-08-18 22:00:05,834 INFO L226 Difference]: Without dead ends: 1900 [2020-08-18 22:00:05,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-18 22:00:05,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2020-08-18 22:00:05,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1890. [2020-08-18 22:00:05,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1890 states. [2020-08-18 22:00:05,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2517 transitions. [2020-08-18 22:00:05,902 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2517 transitions. Word has length 213 [2020-08-18 22:00:05,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:05,903 INFO L479 AbstractCegarLoop]: Abstraction has 1890 states and 2517 transitions. [2020-08-18 22:00:05,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:00:05,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2517 transitions. [2020-08-18 22:00:05,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-08-18 22:00:05,909 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:05,910 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:05,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 22:00:05,910 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:05,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:05,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1683146711, now seen corresponding path program 1 times [2020-08-18 22:00:05,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:05,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994530410] [2020-08-18 22:00:05,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:06,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:06,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:06,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 22:00:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:06,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-08-18 22:00:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:06,517 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 175 proven. 194 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-18 22:00:06,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994530410] [2020-08-18 22:00:06,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:00:06,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 22:00:06,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304774690] [2020-08-18 22:00:06,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 22:00:06,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:06,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 22:00:06,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-18 22:00:06,521 INFO L87 Difference]: Start difference. First operand 1890 states and 2517 transitions. Second operand 9 states. [2020-08-18 22:00:09,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:09,150 INFO L93 Difference]: Finished difference Result 3677 states and 4968 transitions. [2020-08-18 22:00:09,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-18 22:00:09,151 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 297 [2020-08-18 22:00:09,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:09,163 INFO L225 Difference]: With dead ends: 3677 [2020-08-18 22:00:09,164 INFO L226 Difference]: Without dead ends: 1930 [2020-08-18 22:00:09,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-08-18 22:00:09,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2020-08-18 22:00:09,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1882. [2020-08-18 22:00:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1882 states. [2020-08-18 22:00:09,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2280 transitions. [2020-08-18 22:00:09,231 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2280 transitions. Word has length 297 [2020-08-18 22:00:09,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:09,233 INFO L479 AbstractCegarLoop]: Abstraction has 1882 states and 2280 transitions. [2020-08-18 22:00:09,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 22:00:09,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2280 transitions. [2020-08-18 22:00:09,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2020-08-18 22:00:09,242 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:09,242 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:09,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 22:00:09,243 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:09,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:09,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1242283415, now seen corresponding path program 1 times [2020-08-18 22:00:09,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:09,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837925375] [2020-08-18 22:00:09,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:09,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:09,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:09,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 22:00:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:09,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 22:00:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:09,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-08-18 22:00:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:09,818 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 414 proven. 11 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-08-18 22:00:09,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837925375] [2020-08-18 22:00:09,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:00:09,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 22:00:09,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568515742] [2020-08-18 22:00:09,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 22:00:09,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:09,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 22:00:09,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 22:00:09,831 INFO L87 Difference]: Start difference. First operand 1882 states and 2280 transitions. Second operand 9 states. [2020-08-18 22:00:14,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:14,603 INFO L93 Difference]: Finished difference Result 5238 states and 6410 transitions. [2020-08-18 22:00:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-18 22:00:14,608 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 432 [2020-08-18 22:00:14,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:14,624 INFO L225 Difference]: With dead ends: 5238 [2020-08-18 22:00:14,625 INFO L226 Difference]: Without dead ends: 3356 [2020-08-18 22:00:14,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2020-08-18 22:00:14,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2020-08-18 22:00:14,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 2438. [2020-08-18 22:00:14,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2438 states. [2020-08-18 22:00:14,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 2779 transitions. [2020-08-18 22:00:14,768 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 2779 transitions. Word has length 432 [2020-08-18 22:00:14,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:14,770 INFO L479 AbstractCegarLoop]: Abstraction has 2438 states and 2779 transitions. [2020-08-18 22:00:14,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 22:00:14,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 2779 transitions. [2020-08-18 22:00:14,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2020-08-18 22:00:14,792 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:14,793 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:14,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 22:00:14,795 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:14,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:14,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1681885400, now seen corresponding path program 1 times [2020-08-18 22:00:14,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:14,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365129984] [2020-08-18 22:00:14,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:15,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:15,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:15,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 22:00:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:15,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 22:00:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:15,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-18 22:00:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:15,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-08-18 22:00:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 638 proven. 209 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-08-18 22:00:16,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365129984] [2020-08-18 22:00:16,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:00:16,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 22:00:16,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558101500] [2020-08-18 22:00:16,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 22:00:16,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:16,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 22:00:16,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:00:16,027 INFO L87 Difference]: Start difference. First operand 2438 states and 2779 transitions. Second operand 10 states. [2020-08-18 22:00:19,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:19,056 INFO L93 Difference]: Finished difference Result 5701 states and 6650 transitions. [2020-08-18 22:00:19,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-18 22:00:19,056 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 552 [2020-08-18 22:00:19,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:19,072 INFO L225 Difference]: With dead ends: 5701 [2020-08-18 22:00:19,073 INFO L226 Difference]: Without dead ends: 3400 [2020-08-18 22:00:19,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-08-18 22:00:19,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2020-08-18 22:00:19,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3174. [2020-08-18 22:00:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3174 states. [2020-08-18 22:00:19,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 3494 transitions. [2020-08-18 22:00:19,156 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 3494 transitions. Word has length 552 [2020-08-18 22:00:19,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:19,156 INFO L479 AbstractCegarLoop]: Abstraction has 3174 states and 3494 transitions. [2020-08-18 22:00:19,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 22:00:19,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 3494 transitions. [2020-08-18 22:00:19,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2020-08-18 22:00:19,172 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:19,173 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:19,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 22:00:19,173 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:19,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:19,174 INFO L82 PathProgramCache]: Analyzing trace with hash 60264982, now seen corresponding path program 1 times [2020-08-18 22:00:19,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:19,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157502749] [2020-08-18 22:00:19,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:19,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:19,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:19,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 22:00:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:19,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 22:00:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:19,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-08-18 22:00:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:20,236 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 415 proven. 136 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2020-08-18 22:00:20,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157502749] [2020-08-18 22:00:20,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:00:20,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 22:00:20,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031436054] [2020-08-18 22:00:20,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 22:00:20,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:20,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 22:00:20,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:00:20,239 INFO L87 Difference]: Start difference. First operand 3174 states and 3494 transitions. Second operand 10 states. [2020-08-18 22:00:23,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:23,245 INFO L93 Difference]: Finished difference Result 5994 states and 6641 transitions. [2020-08-18 22:00:23,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-18 22:00:23,246 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 585 [2020-08-18 22:00:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:23,261 INFO L225 Difference]: With dead ends: 5994 [2020-08-18 22:00:23,261 INFO L226 Difference]: Without dead ends: 3192 [2020-08-18 22:00:23,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2020-08-18 22:00:23,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2020-08-18 22:00:23,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3178. [2020-08-18 22:00:23,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2020-08-18 22:00:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 3485 transitions. [2020-08-18 22:00:23,345 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 3485 transitions. Word has length 585 [2020-08-18 22:00:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:23,346 INFO L479 AbstractCegarLoop]: Abstraction has 3178 states and 3485 transitions. [2020-08-18 22:00:23,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 22:00:23,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 3485 transitions. [2020-08-18 22:00:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2020-08-18 22:00:23,355 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:23,355 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:23,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 22:00:23,356 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:23,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:23,356 INFO L82 PathProgramCache]: Analyzing trace with hash 762745801, now seen corresponding path program 2 times [2020-08-18 22:00:23,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:23,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883999185] [2020-08-18 22:00:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:23,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:23,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:23,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 22:00:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:23,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 22:00:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:23,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-08-18 22:00:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:23,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-08-18 22:00:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 579 proven. 140 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2020-08-18 22:00:24,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883999185] [2020-08-18 22:00:24,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:00:24,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 22:00:24,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955681910] [2020-08-18 22:00:24,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 22:00:24,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:24,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 22:00:24,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-18 22:00:24,454 INFO L87 Difference]: Start difference. First operand 3178 states and 3485 transitions. Second operand 9 states. [2020-08-18 22:00:26,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:26,863 INFO L93 Difference]: Finished difference Result 6354 states and 6980 transitions. [2020-08-18 22:00:26,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 22:00:26,863 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 695 [2020-08-18 22:00:26,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:26,877 INFO L225 Difference]: With dead ends: 6354 [2020-08-18 22:00:26,877 INFO L226 Difference]: Without dead ends: 3364 [2020-08-18 22:00:26,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-08-18 22:00:26,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2020-08-18 22:00:26,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 3178. [2020-08-18 22:00:26,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2020-08-18 22:00:26,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 3483 transitions. [2020-08-18 22:00:26,950 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 3483 transitions. Word has length 695 [2020-08-18 22:00:26,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:26,951 INFO L479 AbstractCegarLoop]: Abstraction has 3178 states and 3483 transitions. [2020-08-18 22:00:26,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 22:00:26,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 3483 transitions. [2020-08-18 22:00:26,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2020-08-18 22:00:26,959 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:26,959 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:26,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 22:00:26,960 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:26,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:26,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1185073778, now seen corresponding path program 1 times [2020-08-18 22:00:26,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:26,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419007509] [2020-08-18 22:00:26,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:27,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:27,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:27,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 22:00:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:27,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 22:00:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:27,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 22:00:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:27,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2020-08-18 22:00:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:28,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 586 proven. 140 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2020-08-18 22:00:28,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419007509] [2020-08-18 22:00:28,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:00:28,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 22:00:28,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488775661] [2020-08-18 22:00:28,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 22:00:28,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:28,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 22:00:28,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:00:28,208 INFO L87 Difference]: Start difference. First operand 3178 states and 3483 transitions. Second operand 10 states. [2020-08-18 22:00:31,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:31,576 INFO L93 Difference]: Finished difference Result 6540 states and 7198 transitions. [2020-08-18 22:00:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-18 22:00:31,577 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 702 [2020-08-18 22:00:31,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:31,592 INFO L225 Difference]: With dead ends: 6540 [2020-08-18 22:00:31,592 INFO L226 Difference]: Without dead ends: 3552 [2020-08-18 22:00:31,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-08-18 22:00:31,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2020-08-18 22:00:31,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3548. [2020-08-18 22:00:31,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3548 states. [2020-08-18 22:00:31,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 3868 transitions. [2020-08-18 22:00:31,718 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 3868 transitions. Word has length 702 [2020-08-18 22:00:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:31,720 INFO L479 AbstractCegarLoop]: Abstraction has 3548 states and 3868 transitions. [2020-08-18 22:00:31,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 22:00:31,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 3868 transitions. [2020-08-18 22:00:31,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2020-08-18 22:00:31,731 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:31,732 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:31,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 22:00:31,733 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:31,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:31,734 INFO L82 PathProgramCache]: Analyzing trace with hash 326490438, now seen corresponding path program 1 times [2020-08-18 22:00:31,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:31,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329522053] [2020-08-18 22:00:31,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:31,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:31,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:31,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 22:00:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:32,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 22:00:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:32,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 22:00:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:32,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-18 22:00:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1394 backedges. 733 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-08-18 22:00:32,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329522053] [2020-08-18 22:00:32,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:00:32,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 22:00:32,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081688226] [2020-08-18 22:00:32,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 22:00:32,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:32,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 22:00:32,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:00:32,465 INFO L87 Difference]: Start difference. First operand 3548 states and 3868 transitions. Second operand 7 states. [2020-08-18 22:00:33,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:33,793 INFO L93 Difference]: Finished difference Result 8032 states and 8888 transitions. [2020-08-18 22:00:33,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 22:00:33,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 728 [2020-08-18 22:00:33,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:33,812 INFO L225 Difference]: With dead ends: 8032 [2020-08-18 22:00:33,812 INFO L226 Difference]: Without dead ends: 4674 [2020-08-18 22:00:33,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-08-18 22:00:33,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4674 states. [2020-08-18 22:00:33,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4674 to 4292. [2020-08-18 22:00:33,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-18 22:00:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4748 transitions. [2020-08-18 22:00:33,911 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4748 transitions. Word has length 728 [2020-08-18 22:00:33,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:33,912 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4748 transitions. [2020-08-18 22:00:33,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 22:00:33,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4748 transitions. [2020-08-18 22:00:33,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2020-08-18 22:00:33,923 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:33,924 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:33,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 22:00:33,925 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:33,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:33,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1244120290, now seen corresponding path program 1 times [2020-08-18 22:00:33,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:33,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272893797] [2020-08-18 22:00:33,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:34,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:34,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:34,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 22:00:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:34,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 22:00:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:34,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 22:00:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:34,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-08-18 22:00:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:34,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2020-08-18 22:00:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 291 proven. 6 refuted. 0 times theorem prover too weak. 1523 trivial. 0 not checked. [2020-08-18 22:00:34,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272893797] [2020-08-18 22:00:34,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:00:34,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 22:00:34,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808864566] [2020-08-18 22:00:34,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:00:34,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:34,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:00:34,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:00:34,669 INFO L87 Difference]: Start difference. First operand 4292 states and 4748 transitions. Second operand 5 states. [2020-08-18 22:00:35,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:35,862 INFO L93 Difference]: Finished difference Result 4296 states and 4751 transitions. [2020-08-18 22:00:35,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 22:00:35,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 783 [2020-08-18 22:00:35,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:35,890 INFO L225 Difference]: With dead ends: 4296 [2020-08-18 22:00:35,891 INFO L226 Difference]: Without dead ends: 4294 [2020-08-18 22:00:35,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:00:35,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2020-08-18 22:00:35,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 4292. [2020-08-18 22:00:35,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-18 22:00:35,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4747 transitions. [2020-08-18 22:00:35,973 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4747 transitions. Word has length 783 [2020-08-18 22:00:35,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:35,974 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4747 transitions. [2020-08-18 22:00:35,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:00:35,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4747 transitions. [2020-08-18 22:00:35,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2020-08-18 22:00:35,987 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:35,988 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:35,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-18 22:00:35,988 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:35,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:35,989 INFO L82 PathProgramCache]: Analyzing trace with hash 277730204, now seen corresponding path program 1 times [2020-08-18 22:00:35,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:35,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348804889] [2020-08-18 22:00:35,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:36,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:36,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:36,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 22:00:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:36,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 22:00:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:36,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 22:00:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:36,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-18 22:00:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:36,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-08-18 22:00:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:36,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-08-18 22:00:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:36,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2344 backedges. 340 proven. 7 refuted. 0 times theorem prover too weak. 1997 trivial. 0 not checked. [2020-08-18 22:00:36,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348804889] [2020-08-18 22:00:36,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:00:36,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 22:00:36,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712255632] [2020-08-18 22:00:36,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:00:36,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:36,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:00:36,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:00:36,818 INFO L87 Difference]: Start difference. First operand 4292 states and 4747 transitions. Second operand 5 states. [2020-08-18 22:00:37,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:37,916 INFO L93 Difference]: Finished difference Result 4668 states and 5158 transitions. [2020-08-18 22:00:37,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 22:00:37,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 828 [2020-08-18 22:00:37,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:37,935 INFO L225 Difference]: With dead ends: 4668 [2020-08-18 22:00:37,935 INFO L226 Difference]: Without dead ends: 4666 [2020-08-18 22:00:37,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:00:37,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2020-08-18 22:00:38,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4292. [2020-08-18 22:00:38,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-18 22:00:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4751 transitions. [2020-08-18 22:00:38,011 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4751 transitions. Word has length 828 [2020-08-18 22:00:38,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:38,012 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4751 transitions. [2020-08-18 22:00:38,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:00:38,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4751 transitions. [2020-08-18 22:00:38,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2020-08-18 22:00:38,025 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:00:38,026 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:00:38,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-18 22:00:38,026 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:00:38,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:00:38,027 INFO L82 PathProgramCache]: Analyzing trace with hash 117494447, now seen corresponding path program 1 times [2020-08-18 22:00:38,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:00:38,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516619350] [2020-08-18 22:00:38,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:00:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:38,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:00:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:38,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 22:00:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:38,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 22:00:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:38,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 22:00:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:38,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 22:00:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:38,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-18 22:00:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:38,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-08-18 22:00:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:38,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-08-18 22:00:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:00:39,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2399 backedges. 337 proven. 28 refuted. 0 times theorem prover too weak. 2034 trivial. 0 not checked. [2020-08-18 22:00:39,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516619350] [2020-08-18 22:00:39,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:00:39,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 22:00:39,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230818705] [2020-08-18 22:00:39,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 22:00:39,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:00:39,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 22:00:39,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:00:39,054 INFO L87 Difference]: Start difference. First operand 4292 states and 4751 transitions. Second operand 7 states. [2020-08-18 22:00:41,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:00:41,570 INFO L93 Difference]: Finished difference Result 4854 states and 5352 transitions. [2020-08-18 22:00:41,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 22:00:41,574 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 839 [2020-08-18 22:00:41,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:00:41,575 INFO L225 Difference]: With dead ends: 4854 [2020-08-18 22:00:41,575 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 22:00:41,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-08-18 22:00:41,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 22:00:41,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 22:00:41,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 22:00:41,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 22:00:41,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 839 [2020-08-18 22:00:41,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:00:41,584 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 22:00:41,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 22:00:41,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 22:00:41,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 22:00:41,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-18 22:00:41,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 22:00:42,080 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 163 [2020-08-18 22:00:42,311 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 163 [2020-08-18 22:00:43,252 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 41 [2020-08-18 22:00:43,941 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 38 [2020-08-18 22:00:44,548 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 38 [2020-08-18 22:00:44,552 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 22:00:44,553 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-08-18 22:00:44,553 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 22:00:44,553 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-08-18 22:00:44,554 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-08-18 22:00:44,554 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,554 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,554 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,554 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-08-18 22:00:44,555 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-18 22:00:44,555 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-18 22:00:44,555 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-18 22:00:44,555 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-08-18 22:00:44,555 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-08-18 22:00:44,556 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-08-18 22:00:44,556 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-08-18 22:00:44,556 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,556 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,556 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,556 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-08-18 22:00:44,556 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-08-18 22:00:44,556 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-18 22:00:44,557 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-18 22:00:44,557 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-18 22:00:44,557 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-08-18 22:00:44,557 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-08-18 22:00:44,557 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-08-18 22:00:44,557 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,557 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,557 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,557 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-08-18 22:00:44,558 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-18 22:00:44,558 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-18 22:00:44,558 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-18 22:00:44,558 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-08-18 22:00:44,558 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-08-18 22:00:44,558 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-08-18 22:00:44,558 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-08-18 22:00:44,558 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-08-18 22:00:44,559 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,559 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,559 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,559 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-08-18 22:00:44,559 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-18 22:00:44,559 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-18 22:00:44,559 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-18 22:00:44,559 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-08-18 22:00:44,560 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-08-18 22:00:44,560 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-08-18 22:00:44,560 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,560 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,560 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,560 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-08-18 22:00:44,560 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-18 22:00:44,560 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-18 22:00:44,560 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-18 22:00:44,560 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-08-18 22:00:44,561 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-08-18 22:00:44,561 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-08-18 22:00:44,561 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-08-18 22:00:44,561 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-08-18 22:00:44,561 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,561 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,561 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,561 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,561 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-08-18 22:00:44,562 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-18 22:00:44,562 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-18 22:00:44,562 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-18 22:00:44,562 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-08-18 22:00:44,562 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-08-18 22:00:44,562 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-08-18 22:00:44,562 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-08-18 22:00:44,562 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,563 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,563 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,563 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-18 22:00:44,563 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-18 22:00:44,563 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-18 22:00:44,563 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-08-18 22:00:44,563 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-08-18 22:00:44,563 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-08-18 22:00:44,564 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-08-18 22:00:44,564 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-08-18 22:00:44,564 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,564 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,564 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,564 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-08-18 22:00:44,564 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-08-18 22:00:44,564 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-18 22:00:44,564 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-18 22:00:44,565 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-18 22:00:44,565 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-08-18 22:00:44,565 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a12~0 |old(~a12~0)|)) (.cse4 (= ~a15~0 |old(~a15~0)|))) (let ((.cse0 (not (= |old(~a24~0)| 1))) (.cse1 (and .cse2 (= ~a24~0 1) .cse3 .cse4))) (and (or .cse0 .cse1 (not (= 9 |old(~a15~0)|))) (or (and (= ~a24~0 |old(~a24~0)|) .cse2 .cse3 .cse4) (let ((.cse5 (not (<= |old(~a15~0)| 6)))) (and (or (= 8 |old(~a21~0)|) .cse5) (or .cse0 .cse5 (not (<= |old(~a12~0)| 80)))))) (or .cse0 .cse1 (not (<= |old(~a15~0)| 8)) (not (<= 7 |old(~a15~0)|)))))) [2020-08-18 22:00:44,565 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-08-18 22:00:44,565 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-08-18 22:00:44,565 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,565 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,566 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,566 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-18 22:00:44,566 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-18 22:00:44,566 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-18 22:00:44,566 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-08-18 22:00:44,566 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-08-18 22:00:44,566 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-08-18 22:00:44,566 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-08-18 22:00:44,566 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-08-18 22:00:44,567 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,567 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,567 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,567 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-08-18 22:00:44,567 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-08-18 22:00:44,567 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-18 22:00:44,567 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-18 22:00:44,567 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-18 22:00:44,567 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-08-18 22:00:44,568 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-08-18 22:00:44,568 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-08-18 22:00:44,568 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,568 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,568 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,568 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-08-18 22:00:44,568 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-18 22:00:44,568 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-18 22:00:44,568 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-18 22:00:44,568 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-08-18 22:00:44,569 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-08-18 22:00:44,569 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-08-18 22:00:44,569 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-08-18 22:00:44,569 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,569 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,569 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,569 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-08-18 22:00:44,569 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-18 22:00:44,569 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-18 22:00:44,570 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-18 22:00:44,570 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-08-18 22:00:44,570 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-08-18 22:00:44,570 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-08-18 22:00:44,570 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-08-18 22:00:44,570 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,570 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,570 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-08-18 22:00:44,570 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 148) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-18 22:00:44,571 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-08-18 22:00:44,572 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,573 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,574 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-18 22:00:44,574 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,574 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-08-18 22:00:44,574 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-08-18 22:00:44,574 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-08-18 22:00:44,574 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-18 22:00:44,574 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-18 22:00:44,574 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-18 22:00:44,574 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-08-18 22:00:44,574 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-08-18 22:00:44,574 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,575 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-18 22:00:44,576 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 22:00:44,577 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0)) [2020-08-18 22:00:44,578 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 22:00:44,578 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 22:00:44,578 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 7)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-08-18 22:00:44,578 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-08-18 22:00:44,578 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 6))) (or (and (<= 7 ~a15~0) .cse0 (<= ~a15~0 8)) (not (= 7 |old(~a21~0)|)) (not (= |old(~a24~0)| 1)) (and .cse0 (= ~a15~0 9)) (not (= 8 |old(~a15~0)|)) (and .cse0 (<= ~a12~0 80) .cse1) (not (<= (+ |old(~a12~0)| 49) 0)) (and (not (= ~a21~0 8)) .cse1))) [2020-08-18 22:00:44,578 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-08-18 22:00:44,578 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-08-18 22:00:44,579 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 6))) (or (and (<= 7 ~a15~0) .cse0 (<= ~a15~0 8)) (not (= 7 |old(~a21~0)|)) (not (= |old(~a24~0)| 1)) (and .cse0 (= ~a15~0 9)) (not (= 8 |old(~a15~0)|)) (and .cse0 (<= ~a12~0 80) .cse1) (not (<= (+ |old(~a12~0)| 49) 0)) (and (not (= ~a21~0 8)) .cse1))) [2020-08-18 22:00:44,579 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-08-18 22:00:44,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 10:00:44 BoogieIcfgContainer [2020-08-18 22:00:44,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 22:00:44,603 INFO L168 Benchmark]: Toolchain (without parser) took 51915.11 ms. Allocated memory was 140.0 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 99.9 MB in the beginning and 965.8 MB in the end (delta: -865.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-08-18 22:00:44,604 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-18 22:00:44,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 821.79 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 99.7 MB in the beginning and 169.5 MB in the end (delta: -69.8 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. [2020-08-18 22:00:44,606 INFO L168 Benchmark]: Boogie Preprocessor took 115.04 ms. Allocated memory is still 206.6 MB. Free memory was 169.5 MB in the beginning and 163.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-08-18 22:00:44,607 INFO L168 Benchmark]: RCFGBuilder took 1515.07 ms. Allocated memory was 206.6 MB in the beginning and 240.6 MB in the end (delta: 34.1 MB). Free memory was 163.8 MB in the beginning and 157.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. [2020-08-18 22:00:44,608 INFO L168 Benchmark]: TraceAbstraction took 49453.33 ms. Allocated memory was 240.6 MB in the beginning and 1.2 GB in the end (delta: 977.3 MB). Free memory was 157.6 MB in the beginning and 965.8 MB in the end (delta: -808.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-08-18 22:00:44,612 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 821.79 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 99.7 MB in the beginning and 169.5 MB in the end (delta: -69.8 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.04 ms. Allocated memory is still 206.6 MB. Free memory was 169.5 MB in the beginning and 163.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1515.07 ms. Allocated memory was 206.6 MB in the beginning and 240.6 MB in the end (delta: 34.1 MB). Free memory was 163.8 MB in the beginning and 157.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 49453.33 ms. Allocated memory was 240.6 MB in the beginning and 1.2 GB in the end (delta: 977.3 MB). Free memory was 157.6 MB in the beginning and 965.8 MB in the end (delta: -808.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 148]: 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: 880]: Loop Invariant Derived loop invariant: ((((((((7 <= a15 && a24 == 1) && a15 <= 8) || !(7 == \old(a21))) || !(\old(a24) == 1)) || (a24 == 1 && a15 == 9)) || !(8 == \old(a15))) || ((a24 == 1 && a12 <= 80) && a15 <= 6)) || !(\old(a12) + 49 <= 0)) || (!(a21 == 8) && a15 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 46.3s, OverallIterations: 14, TraceHistogramMax: 8, AutomataDifference: 34.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 376 SDtfs, 14454 SDslu, 532 SDs, 0 SdLazy, 18427 SolverSat, 3161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 417 GetRequests, 229 SyntacticMatches, 2 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4292occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 2222 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 148 PreInvPairs, 210 NumberOfFragments, 276 HoareAnnotationTreeSize, 148 FomulaSimplifications, 57628 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16896 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 7050 NumberOfCodeBlocks, 7050 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 7036 ConstructedInterpolants, 0 QuantifiedInterpolants, 11310831 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 13071/14015 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...