/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=SMALLEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 17:08:49,267 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-18 17:08:49,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 17:08:49,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 17:08:49,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 17:08:49,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 17:08:49,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 17:08:49,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 17:08:49,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 17:08:49,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 17:08:49,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 17:08:49,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 17:08:49,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 17:08:49,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 17:08:49,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 17:08:49,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 17:08:49,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 17:08:49,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 17:08:49,328 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 17:08:49,350 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 17:08:49,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 17:08:49,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 17:08:49,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 17:08:49,352 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 17:08:49,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 17:08:49,353 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 17:08:49,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 17:08:49,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 17:08:49,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 17:08:49,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 17:08:49,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 17:08:49,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 17:08:49,354 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 17:08:49,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 17:08:49,354 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 17:08:49,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 17:08:49,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 17:08:49,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 17:08:49,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 17:08:49,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 17:08:49,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 17:08:49,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 17:08:49,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 17:08:49,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 17:08:49,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 17:08:49,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 17:08:49,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 17:08:49,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 17:08:49,357 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=SMALLEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; [2020-08-18 17:08:49,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 17:08:49,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 17:08:49,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 17:08:49,698 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 17:08:49,698 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 17:08:49,700 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-08-18 17:08:49,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b1a6acc6/e5ebe9e2224b42998c919d702213e3fd/FLAG0e774be5e [2020-08-18 17:08:50,312 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 17:08:50,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-08-18 17:08:50,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b1a6acc6/e5ebe9e2224b42998c919d702213e3fd/FLAG0e774be5e [2020-08-18 17:08:50,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b1a6acc6/e5ebe9e2224b42998c919d702213e3fd [2020-08-18 17:08:50,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 17:08:50,588 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 17:08:50,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 17:08:50,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 17:08:50,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 17:08:50,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:08:50" (1/1) ... [2020-08-18 17:08:50,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d9777a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:08:50, skipping insertion in model container [2020-08-18 17:08:50,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:08:50" (1/1) ... [2020-08-18 17:08:50,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 17:08:50,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 17:08:51,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:08:51,135 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 17:08:51,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:08:51,298 INFO L208 MainTranslator]: Completed translation [2020-08-18 17:08:51,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:08:51 WrapperNode [2020-08-18 17:08:51,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 17:08:51,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 17:08:51,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 17:08:51,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 17:08:51,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:08:51" (1/1) ... [2020-08-18 17:08:51,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:08:51" (1/1) ... [2020-08-18 17:08:51,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:08:51" (1/1) ... [2020-08-18 17:08:51,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:08:51" (1/1) ... [2020-08-18 17:08:51,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:08:51" (1/1) ... [2020-08-18 17:08:51,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:08:51" (1/1) ... [2020-08-18 17:08:51,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:08:51" (1/1) ... [2020-08-18 17:08:51,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 17:08:51,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 17:08:51,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 17:08:51,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 17:08:51,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:08:51" (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 17:08:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 17:08:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 17:08:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 17:08:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 17:08:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 17:08:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 17:08:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 17:08:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 17:08:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 17:08:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 17:08:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 17:08:52,881 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 17:08:52,881 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 17:08:52,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:08:52 BoogieIcfgContainer [2020-08-18 17:08:52,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 17:08:52,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 17:08:52,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 17:08:52,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 17:08:52,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 05:08:50" (1/3) ... [2020-08-18 17:08:52,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39867abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:08:52, skipping insertion in model container [2020-08-18 17:08:52,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:08:51" (2/3) ... [2020-08-18 17:08:52,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39867abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:08:52, skipping insertion in model container [2020-08-18 17:08:52,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:08:52" (3/3) ... [2020-08-18 17:08:52,896 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label11.c [2020-08-18 17:08:52,906 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 17:08:52,914 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 17:08:52,928 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 17:08:52,954 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 17:08:52,954 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 17:08:52,954 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 17:08:52,955 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 17:08:52,955 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 17:08:52,955 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 17:08:52,955 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 17:08:52,956 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 17:08:52,978 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-08-18 17:08:52,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-18 17:08:52,989 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:08:52,990 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:08:52,990 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:08:52,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:08:53,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1918215546, now seen corresponding path program 1 times [2020-08-18 17:08:53,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:08:53,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014977508] [2020-08-18 17:08:53,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:08:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:08:53,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:08:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:08:53,407 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 17:08:53,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014977508] [2020-08-18 17:08:53,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:08:53,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 17:08:53,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354860415] [2020-08-18 17:08:53,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 17:08:53,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:08:53,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 17:08:53,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:08:53,433 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-08-18 17:08:55,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:08:55,782 INFO L93 Difference]: Finished difference Result 730 states and 1300 transitions. [2020-08-18 17:08:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 17:08:55,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2020-08-18 17:08:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:08:55,817 INFO L225 Difference]: With dead ends: 730 [2020-08-18 17:08:55,818 INFO L226 Difference]: Without dead ends: 447 [2020-08-18 17:08:55,830 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 17:08:55,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-08-18 17:08:55,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 443. [2020-08-18 17:08:55,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-08-18 17:08:55,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 615 transitions. [2020-08-18 17:08:55,922 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 615 transitions. Word has length 67 [2020-08-18 17:08:55,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:08:55,923 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 615 transitions. [2020-08-18 17:08:55,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 17:08:55,923 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 615 transitions. [2020-08-18 17:08:55,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-08-18 17:08:55,931 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:08:55,932 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, 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] [2020-08-18 17:08:55,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 17:08:55,932 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:08:55,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:08:55,933 INFO L82 PathProgramCache]: Analyzing trace with hash 387828613, now seen corresponding path program 1 times [2020-08-18 17:08:55,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:08:55,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478448993] [2020-08-18 17:08:55,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:08:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:08:56,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:08:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:08:56,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:08:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:08:56,201 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:08:56,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478448993] [2020-08-18 17:08:56,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:08:56,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 17:08:56,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100990183] [2020-08-18 17:08:56,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 17:08:56,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:08:56,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 17:08:56,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 17:08:56,206 INFO L87 Difference]: Start difference. First operand 443 states and 615 transitions. Second operand 7 states. [2020-08-18 17:08:57,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:08:57,506 INFO L93 Difference]: Finished difference Result 1033 states and 1409 transitions. [2020-08-18 17:08:57,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 17:08:57,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-08-18 17:08:57,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:08:57,513 INFO L225 Difference]: With dead ends: 1033 [2020-08-18 17:08:57,513 INFO L226 Difference]: Without dead ends: 596 [2020-08-18 17:08:57,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-08-18 17:08:57,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-08-18 17:08:57,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 592. [2020-08-18 17:08:57,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-08-18 17:08:57,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 781 transitions. [2020-08-18 17:08:57,553 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 781 transitions. Word has length 144 [2020-08-18 17:08:57,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:08:57,554 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 781 transitions. [2020-08-18 17:08:57,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 17:08:57,554 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 781 transitions. [2020-08-18 17:08:57,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-08-18 17:08:57,566 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:08:57,566 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 17:08:57,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 17:08:57,567 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:08:57,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:08:57,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1146813015, now seen corresponding path program 1 times [2020-08-18 17:08:57,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:08:57,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623236769] [2020-08-18 17:08:57,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:08:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:08:57,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:08:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:08:57,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:08:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:08:57,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 17:08:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:08:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 112 proven. 8 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-08-18 17:08:57,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623236769] [2020-08-18 17:08:57,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:08:57,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 17:08:57,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125051037] [2020-08-18 17:08:57,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 17:08:57,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:08:57,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 17:08:57,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 17:08:57,930 INFO L87 Difference]: Start difference. First operand 592 states and 781 transitions. Second operand 7 states. [2020-08-18 17:09:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:09:00,177 INFO L93 Difference]: Finished difference Result 1768 states and 2478 transitions. [2020-08-18 17:09:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 17:09:00,178 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 214 [2020-08-18 17:09:00,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:09:00,186 INFO L225 Difference]: With dead ends: 1768 [2020-08-18 17:09:00,186 INFO L226 Difference]: Without dead ends: 1325 [2020-08-18 17:09:00,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-18 17:09:00,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2020-08-18 17:09:00,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1180. [2020-08-18 17:09:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2020-08-18 17:09:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1600 transitions. [2020-08-18 17:09:00,239 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1600 transitions. Word has length 214 [2020-08-18 17:09:00,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:09:00,240 INFO L479 AbstractCegarLoop]: Abstraction has 1180 states and 1600 transitions. [2020-08-18 17:09:00,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 17:09:00,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1600 transitions. [2020-08-18 17:09:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-08-18 17:09:00,249 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:09:00,249 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 17:09:00,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 17:09:00,250 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:09:00,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:09:00,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1807493347, now seen corresponding path program 1 times [2020-08-18 17:09:00,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:09:00,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855284904] [2020-08-18 17:09:00,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:09:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:00,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:09:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:00,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:09:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:00,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 17:09:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:00,776 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 187 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 17:09:00,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855284904] [2020-08-18 17:09:00,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:09:00,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 17:09:00,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143782970] [2020-08-18 17:09:00,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 17:09:00,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:09:00,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 17:09:00,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-08-18 17:09:00,779 INFO L87 Difference]: Start difference. First operand 1180 states and 1600 transitions. Second operand 12 states. [2020-08-18 17:09:04,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:09:04,556 INFO L93 Difference]: Finished difference Result 2974 states and 4211 transitions. [2020-08-18 17:09:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-18 17:09:04,557 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 256 [2020-08-18 17:09:04,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:09:04,569 INFO L225 Difference]: With dead ends: 2974 [2020-08-18 17:09:04,569 INFO L226 Difference]: Without dead ends: 1943 [2020-08-18 17:09:04,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2020-08-18 17:09:04,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1943 states. [2020-08-18 17:09:04,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1943 to 1788. [2020-08-18 17:09:04,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1788 states. [2020-08-18 17:09:04,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2375 transitions. [2020-08-18 17:09:04,637 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2375 transitions. Word has length 256 [2020-08-18 17:09:04,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:09:04,638 INFO L479 AbstractCegarLoop]: Abstraction has 1788 states and 2375 transitions. [2020-08-18 17:09:04,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 17:09:04,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2375 transitions. [2020-08-18 17:09:04,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-08-18 17:09:04,644 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:09:04,644 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:09:04,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 17:09:04,645 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:09:04,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:09:04,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1006495754, now seen corresponding path program 1 times [2020-08-18 17:09:04,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:09:04,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793730756] [2020-08-18 17:09:04,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:09:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:04,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:09:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:04,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:09:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:04,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 17:09:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:05,255 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 124 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 17:09:05,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793730756] [2020-08-18 17:09:05,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:09:05,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 17:09:05,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203140278] [2020-08-18 17:09:05,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 17:09:05,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:09:05,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 17:09:05,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 17:09:05,260 INFO L87 Difference]: Start difference. First operand 1788 states and 2375 transitions. Second operand 10 states. [2020-08-18 17:09:08,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:09:08,663 INFO L93 Difference]: Finished difference Result 4483 states and 6103 transitions. [2020-08-18 17:09:08,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-18 17:09:08,664 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 265 [2020-08-18 17:09:08,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:09:08,679 INFO L225 Difference]: With dead ends: 4483 [2020-08-18 17:09:08,680 INFO L226 Difference]: Without dead ends: 2817 [2020-08-18 17:09:08,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-08-18 17:09:08,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2020-08-18 17:09:08,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2380. [2020-08-18 17:09:08,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2380 states. [2020-08-18 17:09:08,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3210 transitions. [2020-08-18 17:09:08,776 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3210 transitions. Word has length 265 [2020-08-18 17:09:08,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:09:08,777 INFO L479 AbstractCegarLoop]: Abstraction has 2380 states and 3210 transitions. [2020-08-18 17:09:08,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 17:09:08,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3210 transitions. [2020-08-18 17:09:08,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-08-18 17:09:08,786 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:09:08,787 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, 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, 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] [2020-08-18 17:09:08,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 17:09:08,788 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:09:08,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:09:08,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1040380270, now seen corresponding path program 1 times [2020-08-18 17:09:08,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:09:08,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331910400] [2020-08-18 17:09:08,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:09:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:08,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:09:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:09,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:09:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:09,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-18 17:09:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:09,369 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 232 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 17:09:09,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331910400] [2020-08-18 17:09:09,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:09:09,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 17:09:09,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611054406] [2020-08-18 17:09:09,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 17:09:09,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:09:09,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 17:09:09,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-18 17:09:09,372 INFO L87 Difference]: Start difference. First operand 2380 states and 3210 transitions. Second operand 9 states. [2020-08-18 17:09:14,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:09:14,300 INFO L93 Difference]: Finished difference Result 5507 states and 7463 transitions. [2020-08-18 17:09:14,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 17:09:14,303 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 301 [2020-08-18 17:09:14,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:09:14,321 INFO L225 Difference]: With dead ends: 5507 [2020-08-18 17:09:14,321 INFO L226 Difference]: Without dead ends: 3276 [2020-08-18 17:09:14,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2020-08-18 17:09:14,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2020-08-18 17:09:14,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3272. [2020-08-18 17:09:14,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3272 states. [2020-08-18 17:09:14,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3272 states to 3272 states and 4302 transitions. [2020-08-18 17:09:14,417 INFO L78 Accepts]: Start accepts. Automaton has 3272 states and 4302 transitions. Word has length 301 [2020-08-18 17:09:14,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:09:14,418 INFO L479 AbstractCegarLoop]: Abstraction has 3272 states and 4302 transitions. [2020-08-18 17:09:14,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 17:09:14,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3272 states and 4302 transitions. [2020-08-18 17:09:14,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-08-18 17:09:14,430 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:09:14,430 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, 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, 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] [2020-08-18 17:09:14,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 17:09:14,431 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:09:14,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:09:14,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1714845138, now seen corresponding path program 1 times [2020-08-18 17:09:14,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:09:14,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219923751] [2020-08-18 17:09:14,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:09:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:14,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:09:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:14,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:09:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:14,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-18 17:09:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:14,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-08-18 17:09:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:14,914 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 363 proven. 8 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-08-18 17:09:14,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219923751] [2020-08-18 17:09:14,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:09:14,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 17:09:14,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677089766] [2020-08-18 17:09:14,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 17:09:14,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:09:14,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 17:09:14,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 17:09:14,917 INFO L87 Difference]: Start difference. First operand 3272 states and 4302 transitions. Second operand 9 states. [2020-08-18 17:09:18,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:09:18,243 INFO L93 Difference]: Finished difference Result 7541 states and 10111 transitions. [2020-08-18 17:09:18,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 17:09:18,244 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 373 [2020-08-18 17:09:18,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:09:18,263 INFO L225 Difference]: With dead ends: 7541 [2020-08-18 17:09:18,263 INFO L226 Difference]: Without dead ends: 4418 [2020-08-18 17:09:18,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-08-18 17:09:18,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4418 states. [2020-08-18 17:09:18,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4418 to 2986. [2020-08-18 17:09:18,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2986 states. [2020-08-18 17:09:18,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 3596 transitions. [2020-08-18 17:09:18,358 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 3596 transitions. Word has length 373 [2020-08-18 17:09:18,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:09:18,359 INFO L479 AbstractCegarLoop]: Abstraction has 2986 states and 3596 transitions. [2020-08-18 17:09:18,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 17:09:18,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 3596 transitions. [2020-08-18 17:09:18,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-08-18 17:09:18,370 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:09:18,371 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, 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, 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] [2020-08-18 17:09:18,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 17:09:18,371 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:09:18,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:09:18,372 INFO L82 PathProgramCache]: Analyzing trace with hash 348873925, now seen corresponding path program 1 times [2020-08-18 17:09:18,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:09:18,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039364738] [2020-08-18 17:09:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:09:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:18,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:09:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:18,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:09:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:18,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-18 17:09:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:18,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-18 17:09:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 255 proven. 187 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-18 17:09:18,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039364738] [2020-08-18 17:09:18,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:09:18,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 17:09:18,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496964778] [2020-08-18 17:09:18,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 17:09:18,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:09:18,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 17:09:18,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-18 17:09:18,980 INFO L87 Difference]: Start difference. First operand 2986 states and 3596 transitions. Second operand 11 states. [2020-08-18 17:09:23,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:09:23,837 INFO L93 Difference]: Finished difference Result 6564 states and 8120 transitions. [2020-08-18 17:09:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-18 17:09:23,838 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 378 [2020-08-18 17:09:23,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:09:23,855 INFO L225 Difference]: With dead ends: 6564 [2020-08-18 17:09:23,856 INFO L226 Difference]: Without dead ends: 4023 [2020-08-18 17:09:23,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2020-08-18 17:09:23,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2020-08-18 17:09:23,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 3435. [2020-08-18 17:09:23,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3435 states. [2020-08-18 17:09:23,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 4055 transitions. [2020-08-18 17:09:23,961 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 4055 transitions. Word has length 378 [2020-08-18 17:09:23,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:09:23,962 INFO L479 AbstractCegarLoop]: Abstraction has 3435 states and 4055 transitions. [2020-08-18 17:09:23,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 17:09:23,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 4055 transitions. [2020-08-18 17:09:23,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2020-08-18 17:09:23,977 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:09:23,980 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-08-18 17:09:23,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 17:09:23,980 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:09:23,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:09:23,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1328157818, now seen corresponding path program 1 times [2020-08-18 17:09:23,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:09:23,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402904490] [2020-08-18 17:09:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:09:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:24,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:09:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:24,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:09:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:24,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 17:09:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:24,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-18 17:09:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 185 proven. 188 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-08-18 17:09:24,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402904490] [2020-08-18 17:09:24,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:09:24,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-18 17:09:24,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192843339] [2020-08-18 17:09:24,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-18 17:09:24,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:09:24,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-18 17:09:24,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-08-18 17:09:24,885 INFO L87 Difference]: Start difference. First operand 3435 states and 4055 transitions. Second operand 14 states. [2020-08-18 17:09:30,722 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-08-18 17:09:31,253 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2020-08-18 17:09:31,831 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-08-18 17:09:32,551 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-08-18 17:09:32,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:09:32,943 INFO L93 Difference]: Finished difference Result 7319 states and 8836 transitions. [2020-08-18 17:09:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-08-18 17:09:32,944 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 389 [2020-08-18 17:09:32,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:09:32,965 INFO L225 Difference]: With dead ends: 7319 [2020-08-18 17:09:32,966 INFO L226 Difference]: Without dead ends: 4478 [2020-08-18 17:09:32,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=629, Invalid=2677, Unknown=0, NotChecked=0, Total=3306 [2020-08-18 17:09:32,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2020-08-18 17:09:33,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 3882. [2020-08-18 17:09:33,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3882 states. [2020-08-18 17:09:33,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 4571 transitions. [2020-08-18 17:09:33,093 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 4571 transitions. Word has length 389 [2020-08-18 17:09:33,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:09:33,094 INFO L479 AbstractCegarLoop]: Abstraction has 3882 states and 4571 transitions. [2020-08-18 17:09:33,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-18 17:09:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 4571 transitions. [2020-08-18 17:09:33,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-08-18 17:09:33,123 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:09:33,124 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, 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, 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] [2020-08-18 17:09:33,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 17:09:33,124 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:09:33,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:09:33,125 INFO L82 PathProgramCache]: Analyzing trace with hash -301430794, now seen corresponding path program 1 times [2020-08-18 17:09:33,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:09:33,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095200697] [2020-08-18 17:09:33,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:09:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:33,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:09:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:33,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:09:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:33,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-18 17:09:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:33,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-08-18 17:09:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 376 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-08-18 17:09:33,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095200697] [2020-08-18 17:09:33,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:09:33,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-18 17:09:33,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619824923] [2020-08-18 17:09:33,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 17:09:33,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:09:33,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 17:09:33,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-08-18 17:09:33,846 INFO L87 Difference]: Start difference. First operand 3882 states and 4571 transitions. Second operand 12 states. [2020-08-18 17:09:34,489 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-08-18 17:09:37,276 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-08-18 17:09:37,583 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 45 [2020-08-18 17:09:38,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:09:38,121 INFO L93 Difference]: Finished difference Result 7333 states and 8707 transitions. [2020-08-18 17:09:38,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-18 17:09:38,122 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 397 [2020-08-18 17:09:38,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:09:38,149 INFO L225 Difference]: With dead ends: 7333 [2020-08-18 17:09:38,149 INFO L226 Difference]: Without dead ends: 4045 [2020-08-18 17:09:38,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2020-08-18 17:09:38,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4045 states. [2020-08-18 17:09:38,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4045 to 4021. [2020-08-18 17:09:38,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4021 states. [2020-08-18 17:09:38,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 4663 transitions. [2020-08-18 17:09:38,265 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 4663 transitions. Word has length 397 [2020-08-18 17:09:38,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:09:38,267 INFO L479 AbstractCegarLoop]: Abstraction has 4021 states and 4663 transitions. [2020-08-18 17:09:38,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 17:09:38,267 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 4663 transitions. [2020-08-18 17:09:38,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-08-18 17:09:38,283 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:09:38,283 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, 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, 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] [2020-08-18 17:09:38,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 17:09:38,284 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:09:38,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:09:38,285 INFO L82 PathProgramCache]: Analyzing trace with hash 252720706, now seen corresponding path program 1 times [2020-08-18 17:09:38,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:09:38,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915652430] [2020-08-18 17:09:38,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:09:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:38,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:09:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:38,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:09:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:38,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-18 17:09:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:38,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-08-18 17:09:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:09:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 183 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-08-18 17:09:38,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915652430] [2020-08-18 17:09:38,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:09:38,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 17:09:38,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638302467] [2020-08-18 17:09:38,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 17:09:38,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:09:38,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 17:09:38,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:09:38,806 INFO L87 Difference]: Start difference. First operand 4021 states and 4663 transitions. Second operand 5 states. [2020-08-18 17:09:40,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:09:40,089 INFO L93 Difference]: Finished difference Result 5187 states and 6108 transitions. [2020-08-18 17:09:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 17:09:40,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 407 [2020-08-18 17:09:40,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:09:40,091 INFO L225 Difference]: With dead ends: 5187 [2020-08-18 17:09:40,091 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 17:09:40,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 17:09:40,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 17:09:40,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 17:09:40,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 17:09:40,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 17:09:40,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 407 [2020-08-18 17:09:40,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:09:40,100 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 17:09:40,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 17:09:40,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 17:09:40,101 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 17:09:40,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 17:09:40,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 17:09:40,837 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 197 [2020-08-18 17:09:41,080 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 197 [2020-08-18 17:09:42,254 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 258 DAG size of output: 38 [2020-08-18 17:09:43,114 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 56 [2020-08-18 17:09:43,963 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 56 [2020-08-18 17:09:43,967 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 17:09:43,968 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-08-18 17:09:43,968 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 17:09:43,968 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-08-18 17:09:43,968 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,968 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,968 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,969 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,969 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,969 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,969 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-08-18 17:09:43,970 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-08-18 17:09:43,970 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-18 17:09:43,970 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-18 17:09:43,970 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-18 17:09:43,970 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-18 17:09:43,970 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-18 17:09:43,970 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-18 17:09:43,971 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-08-18 17:09:43,971 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-08-18 17:09:43,971 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-08-18 17:09:43,971 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,971 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,971 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,971 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,971 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,972 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-08-18 17:09:43,972 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-08-18 17:09:43,972 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-08-18 17:09:43,972 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-08-18 17:09:43,972 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-18 17:09:43,972 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-18 17:09:43,972 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-18 17:09:43,972 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-18 17:09:43,973 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-18 17:09:43,973 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-08-18 17:09:43,973 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-08-18 17:09:43,973 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-08-18 17:09:43,973 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-08-18 17:09:43,973 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-08-18 17:09:43,973 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-08-18 17:09:43,973 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,974 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,974 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,974 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,974 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,974 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-08-18 17:09:43,974 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-18 17:09:43,974 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-18 17:09:43,975 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-18 17:09:43,975 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-18 17:09:43,975 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-18 17:09:43,975 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-08-18 17:09:43,975 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-08-18 17:09:43,975 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-08-18 17:09:43,975 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-08-18 17:09:43,975 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,976 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,976 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,976 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,976 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,976 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-08-18 17:09:43,976 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-08-18 17:09:43,976 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-08-18 17:09:43,976 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-18 17:09:43,977 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-18 17:09:43,977 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-18 17:09:43,977 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-18 17:09:43,977 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-18 17:09:43,977 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-08-18 17:09:43,977 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-08-18 17:09:43,977 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-08-18 17:09:43,977 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-08-18 17:09:43,978 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-08-18 17:09:43,978 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,978 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,978 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,978 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,978 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,978 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-18 17:09:43,978 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-18 17:09:43,979 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-18 17:09:43,979 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-18 17:09:43,979 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-18 17:09:43,979 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-08-18 17:09:43,979 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-08-18 17:09:43,979 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-08-18 17:09:43,979 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-08-18 17:09:43,979 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,980 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,980 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,980 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,980 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,980 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,980 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,980 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-08-18 17:09:43,980 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-08-18 17:09:43,980 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-08-18 17:09:43,981 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-08-18 17:09:43,981 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-18 17:09:43,981 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-18 17:09:43,981 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-18 17:09:43,981 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-18 17:09:43,981 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-18 17:09:43,981 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-08-18 17:09:43,981 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-08-18 17:09:43,982 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-08-18 17:09:43,982 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-08-18 17:09:43,982 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,982 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,982 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,982 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,982 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-18 17:09:43,983 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,983 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,983 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-08-18 17:09:43,983 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-08-18 17:09:43,983 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-08-18 17:09:43,983 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-18 17:09:43,983 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-18 17:09:43,983 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-18 17:09:43,984 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-18 17:09:43,984 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-18 17:09:43,984 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-18 17:09:43,984 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-08-18 17:09:43,984 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-08-18 17:09:43,984 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-08-18 17:09:43,984 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-08-18 17:09:43,984 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,984 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,985 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,985 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,985 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,985 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,985 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-08-18 17:09:43,985 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-08-18 17:09:43,985 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-08-18 17:09:43,985 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-18 17:09:43,986 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-18 17:09:43,986 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-18 17:09:43,986 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-18 17:09:43,986 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-18 17:09:43,986 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-18 17:09:43,986 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-08-18 17:09:43,986 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-08-18 17:09:43,987 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (= 9 |old(~a19~0)|)) (.cse1 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse2 (not (= 14 ~a4~0))) (.cse3 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 .cse2 (not (<= 0 (+ |old(~a1~0)| 12))) .cse3) (or (not .cse0) .cse1 (not (<= |old(~a1~0)| 4)) .cse2 .cse3) (or .cse1 (= 3 |old(~a10~0)|) .cse2 .cse3) (or (not (<= 23 |old(~a1~0)|)) .cse1 .cse2 .cse3))) [2020-08-18 17:09:43,987 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-08-18 17:09:43,987 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-08-18 17:09:43,987 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-08-18 17:09:43,987 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,987 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,987 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,988 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,988 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,988 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,988 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-08-18 17:09:43,988 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-18 17:09:43,988 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-18 17:09:43,988 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-18 17:09:43,989 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-18 17:09:43,989 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-18 17:09:43,989 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-18 17:09:43,989 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-08-18 17:09:43,989 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-08-18 17:09:43,989 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-08-18 17:09:43,989 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-08-18 17:09:43,989 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-08-18 17:09:43,989 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-08-18 17:09:43,990 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,990 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,990 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,990 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,990 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,990 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,990 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-08-18 17:09:43,990 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-08-18 17:09:43,991 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-08-18 17:09:43,991 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-18 17:09:43,991 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-18 17:09:43,991 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-18 17:09:43,991 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-18 17:09:43,991 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-18 17:09:43,991 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-18 17:09:43,991 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-08-18 17:09:43,991 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-08-18 17:09:43,992 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-08-18 17:09:43,992 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,992 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,992 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,992 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,992 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,992 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 17:09:43,992 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-08-18 17:09:43,993 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-08-18 17:09:43,993 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-08-18 17:09:43,993 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-18 17:09:43,993 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-18 17:09:43,993 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-18 17:09:43,993 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-18 17:09:43,993 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-18 17:09:43,993 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-18 17:09:43,993 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-08-18 17:09:43,994 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-08-18 17:09:43,994 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-08-18 17:09:43,994 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 17:09:43,994 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= 14 ~a4~0) (= ~a12~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-08-18 17:09:43,994 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 17:09:43,994 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 17:09:43,994 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (= ~a12~0 0))) [2020-08-18 17:09:43,995 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-08-18 17:09:43,995 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse2 (<= 23 ~a1~0)) (.cse1 (= ~a19~0 |old(~a19~0)|)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|)))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= ~a1~0 4) .cse1) (not (<= |old(~a10~0)| 0)) (and .cse0 .cse2) (and .cse2 (<= ~a1~0 23) .cse1 (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (and .cse0 (not (= ~a10~0 3))) (and (= ~a19~0 8) (= ~a10~0 1) (<= 331505 ~a1~0)) (and .cse0 (<= 0 (+ ~a1~0 12)) (not (= ~a19~0 9))) (not (= ~a12~0 0)))) [2020-08-18 17:09:43,995 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-18 17:09:43,995 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-08-18 17:09:43,995 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse2 (<= 23 ~a1~0)) (.cse1 (= ~a19~0 |old(~a19~0)|)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|)))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= ~a1~0 4) .cse1) (not (<= |old(~a10~0)| 0)) (and .cse0 .cse2) (and .cse2 (<= ~a1~0 23) .cse1 (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (and .cse0 (not (= ~a10~0 3))) (and (= ~a19~0 8) (= ~a10~0 1) (<= 331505 ~a1~0)) (and .cse0 (<= 0 (+ ~a1~0 12)) (not (= ~a19~0 9))) (not (= ~a12~0 0)))) [2020-08-18 17:09:43,996 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-08-18 17:09:44,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 05:09:44 BoogieIcfgContainer [2020-08-18 17:09:44,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 17:09:44,020 INFO L168 Benchmark]: Toolchain (without parser) took 53432.37 ms. Allocated memory was 138.9 MB in the beginning and 724.0 MB in the end (delta: 585.1 MB). Free memory was 101.0 MB in the beginning and 558.9 MB in the end (delta: -458.0 MB). Peak memory consumption was 576.5 MB. Max. memory is 7.1 GB. [2020-08-18 17:09:44,021 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 17:09:44,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.37 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 167.8 MB in the end (delta: -67.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-08-18 17:09:44,022 INFO L168 Benchmark]: Boogie Preprocessor took 127.05 ms. Allocated memory is still 203.9 MB. Free memory was 167.8 MB in the beginning and 163.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-08-18 17:09:44,023 INFO L168 Benchmark]: RCFGBuilder took 1454.92 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 162.7 MB in the beginning and 178.5 MB in the end (delta: -15.8 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-08-18 17:09:44,024 INFO L168 Benchmark]: TraceAbstraction took 51129.29 ms. Allocated memory was 235.9 MB in the beginning and 724.0 MB in the end (delta: 488.1 MB). Free memory was 178.5 MB in the beginning and 558.9 MB in the end (delta: -380.4 MB). Peak memory consumption was 557.1 MB. Max. memory is 7.1 GB. [2020-08-18 17:09:44,028 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 713.37 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 167.8 MB in the end (delta: -67.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.05 ms. Allocated memory is still 203.9 MB. Free memory was 167.8 MB in the beginning and 163.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1454.92 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 162.7 MB in the beginning and 178.5 MB in the end (delta: -15.8 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 51129.29 ms. Allocated memory was 235.9 MB in the beginning and 724.0 MB in the end (delta: 488.1 MB). Free memory was 178.5 MB in the beginning and 558.9 MB in the end (delta: -380.4 MB). Peak memory consumption was 557.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 187]: 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: 582]: Loop Invariant Derived loop invariant: ((((((((((!(23 <= \old(a1)) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a1 <= 4) && a19 == \old(a19))) || !(\old(a10) <= 0)) || ((\old(a1) + 13 <= 0 || 0 == \old(a10)) && 23 <= a1)) || (((23 <= a1 && a1 <= 23) && a19 == \old(a19)) && a10 == \old(a10))) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || !(14 == a4)) || ((\old(a1) + 13 <= 0 || 0 == \old(a10)) && !(a10 == 3))) || ((a19 == 8 && a10 == 1) && 331505 <= a1)) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && 0 <= a1 + 12) && !(a19 == 9))) || !(a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 47.1s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 40.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 388 SDtfs, 10818 SDslu, 632 SDs, 0 SdLazy, 19397 SolverSat, 3724 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 25.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1745 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4021occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 3389 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 162 PreInvPairs, 238 NumberOfFragments, 410 HoareAnnotationTreeSize, 162 FomulaSimplifications, 15737 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12717 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 3191 NumberOfCodeBlocks, 3191 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3180 ConstructedInterpolants, 0 QuantifiedInterpolants, 3814600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 2651/3127 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...